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                                                                    Exhibit 10.8


                              Amended and Restated
                          Common Stock Purchase Warrant
                            Expiring August 25, 2005


                                                              New York, New York
                                                                   July 28, 2000
PPN# 278858 1 1 3
No. W-6


                  ECO SOIL SYSTEMS, INC., a Nebraska corporation (the
"Company"), for value received, hereby certifies that PARIBAS CAPITAL FUNDING
LLC, or registered assigns, is entitled to purchase from the Company 309,148
duly authorized, validly issued, fully paid and nonassessable shares of Common
Stock, par value $.005 per share, of the Company (the "Common Stock") at the
purchase price per share of $.01, at any time or from time to time on or after
July 28, 2000 and prior to 3 P.M., New York City time, on August 25, 2005, all
subject to the terms, conditions and adjustments set forth below in this Amended
and Restated Warrant.

                  This Warrant is one of the Amended and Restated Common Stock
Purchase Warrants (the "Warrants", such term to include all Warrants issued in
substitution therefor) originally issued in connection with the issue and sale
by the Company of $15,000,000 aggregate principal amount of its 12.00% Notes due
August 25, 2003 (together with all notes issued in substitution therefor, the
"Notes"), pursuant to the Note and Warrant Purchase Agreements (collectively,
the "Purchase Agreement"), each dated as of August 25, 1998 and amended from
time to time, between the Company and the institutional investors named therein;
and amended and restated on December 21, 1999. The Warrants originally so issued
evidenced rights to purchase an aggregate of 262,500 shares of Common Stock and
the Warrants as so amended and restated evidence rights to purchase an
additional 399,961 shares of Common Stock, for an aggregate of 662,461 shares;
all subject to adjustment as provided herein. Certain capitalized terms used in
this Warrant are defined in section 14.

                  1. EXERCISE OF WARRANT. 1.1. MANNER OF EXERCISE. This Warrant
may be exercised by the holder hereof, in whole or in part, during normal
business hours on


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any Business Day by surrender of this Warrant, with the form of subscription at
the end hereof (or a reasonable facsimile thereof) duly executed by such holder,
to the Company at its principal office (or, if such exercise shall be in
connection with an underwritten Public Offering of shares of Common Stock (or
Other Securities) subject to this Warrant, at the location at which the Company
shall have agreed to deliver the shares of Common Stock (or Other Securities)
subject to such offering), accompanied by payment, in cash or by certified or
official bank check payable to the order of the company or by the application of
Notes in the manner provided in section 1.5 (or by any combination of such
methods), in the amount obtained by multiplying (A) the number of shares of
Common Stock (without giving effect to any adjustment therein) designated in
such form of subscription by (B) $.01 and such holder shall thereupon be
entitled to receive the number of duly authorized, validly issued, fully paid
and nonassessable shares of Common Stock (or Other Securities) determined as
provided in sections 2 through 4.

                  1.2. WHEN EXERCISE DEEMED EFFECTED. Each exercise of this
Warrant shall be deemed to have been effected immediately prior to the close of
business on the Business Day on which this Warrant shall have been surrendered
to the Company as provided in section 1.1, and at such time the person or
persons in whose name or names any certificate or certificates for shares of
Common Stock (or Other Securities) shall be issuable upon such exercise as
provided in section 1.3 shall be deemed to have become the holder or holders of
record thereof.

                  1.3. DELIVERY OF STOCK CERTIFICATES, ETC. As soon as
practicable after the exercise of this Warrant, in whole or in part, and in any
event within five Business Days thereafter (unless such exercise shall be in
connection with an underwritten Public Offering of shares of Common Stock (or
Other Securities) subject to this Warrant, in which event concurrently with such
exercise), the Company at its expense (including the payment by it of any
applicable taxes other than transfer taxes) will cause to be issued in the name
of and delivered to the holder hereof or, subject to section 8, as such holder
(upon payment by such holder of any applicable transfer taxes) may direct,

                  (a) a certificate or certificates for the number of duly
         authorized, validly issued, fully paid and


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         nonassessable shares of Common Stock (or Other Securities) to which
         such holder shall be entitled upon such exercise plus, in lieu of any
         fractional share to which such holder would otherwise be entitled, cash
         in an amount equal to the same fraction of the Market Price per share
         of such Common Stock (or Other Securities) on the Business Day next
         preceding the date of such exercise, and

                  (b) in case such exercise is in part only, a new Warrant or
         Warrants of like tenor, calling in the aggregate on the face or faces
         thereof for the number of shares of Common Stock equal (without giving
         effect to any adjustment therein) to the number of such shares called
         for on the face of this Warrant minus the number of such shares
         designated by the holder upon such exercise as provided in section 1.1.

                  1.4. COMPANY TO REAFFIRM OBLIGATIONS. The Company will, at the
time of or at any time after each exercise of this Warrant, upon the request of
the holder hereof or of any shares of Common Stock (or Other Securities) issued
upon such exercise, acknowledge in writing its continuing obligation to afford
to such holder all rights (including, without limitation, any right of
registration of any shares of Common Stock (or Other Securities) issuable upon
exercise of this Warrant pursuant to the Registration Rights Agreement) to which
such holder shall continue to be entitled after such exercise in accordance with
the terms of this Warrant, PROVIDED that if any such holder shall fail to make
any such request, the failure shall not affect the continuing obligation of the
Company to afford such rights to such holder.

                  1.5. PAYMENT BY APPLICATION OF THE NOTES. Upon any exercise of
this Warrant, the holder hereof may, at its option, instruct the Company, by so
specifying in the form of subscription submitted therewith as provided in
section 1.1, to apply to the payment required by section 1.1 all or any part of
the principal amount then unpaid and of the interest on such principal amount
then accrued on any one or more Notes at the time held by such holder, in which
case the Company will accept the aggregate amount of principal and accrued
interest on such principal specified in such form of subscription in
satisfaction of a like amount of such payment. In case less than the entire
unpaid principal amount of any Note shall be so specified, the principal


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amount so specified shall be credited, as of the date of such exercise, against
the installments of principal then remaining unpaid on such Note either in the
inverse order of their maturity dates or in the direct order of their maturity
dates as such holder shall instruct in such form of subscription. Within five
days after receipt of any such notice, the Company will pay to the holder of the
Notes submitting such form of subscription, in the manner provided in such Notes
and the Purchase Agreement, all unpaid interest accrued to the date of exercise
of such Warrant on the principal amount so specified in such form of
subscription that is not applied to the payment required by section 1.1 under
this section 1.5. In the event that the entire unpaid principal amount of any
Note is applied to the payment required by section 1.1 under this section 1.5,
such Note shall be promptly surrendered and canceled in accordance with the
provisions of section 15 of the Purchase Agreement.

                  2. ADJUSTMENT OF COMMON STOCK ISSUABLE UPON EXERCISE. 2.1.
NUMBER OF SHARES; WARRANT PRICE. The number of shares of Common Stock which the
holder of this Warrant shall be entitled to receive upon each exercise hereof
shall be determined by multiplying the number of shares of Common Stock which
would otherwise (but for the provisions of this section 2) be issuable upon such
exercise, as designated by the holder hereof pursuant to section 1.1, by a
fraction of which (I) the numerator is $.01 and (II) the denominator is the
Warrant Price in effect on the date of such exercise. The "Warrant Price" shall
initially be $.01 per share, shall be adjusted and readjusted from time to time
as provided in this section 2 and, as so adjusted or readjusted, shall remain in
effect until a further adjustment or readjustment thereof is required by this
section 2.

                  2.2. ADJUSTMENT OF WARRANT PRICE. 2.2.1. ISSUANCE OF
ADDITIONAL SHARES OF COMMON STOCK. In case the Company, at any time or from time
to time after August 25, 1998 (the "Initial Date"), shall issue or sell
Additional Shares of Common Stock (including Additional Shares of Common Stock
deemed to be issued pursuant to section 2.3 or 2.4) without consideration or for
a consideration per share less than the Base Price in effect, in each case, on
the date of and immediately prior to such issue or sale, then, and in each such
case, subject to section 2.8, such Warrant Price shall be reduced, concurrently
with such issue or


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sale, to a price (calculated to the nearest .001 of a cent) determined by
multiplying such Warrant Price by a fraction,

                  (a) the numerator of which shall be (I) the number of shares
         of Common Stock outstanding immediately prior to such issue or sale
         plus (II) the number of shares of Common Stock which the aggregate
         consideration received by the Company for the total number of such
         Additional Shares of Common Stock so issued or sold would purchase at
         the Base Price, and

                  (b) the denominator of which shall be the number of shares of
         Common Stock outstanding immediately after such issue or sale,

PROVIDED that, for the purposes of this section 2.2.1, (X) immediately after any
Additional Shares of Common Stock are deemed to have been issued pursuant to
section 2.3 or 2.4, such Additional Shares shall be deemed to be outstanding,
and (Y) treasury shares shall not be deemed to be outstanding.

                  2.2.2. EXTRAORDINARY DIVIDENDS AND DISTRIBUTIONS. In case the
Company at any time or from time to time after the Initial Date shall declare,
order, pay or make a dividend or other distribution (including, without
limitation, any distribution of other or additional stock or other securities or
property or Options by way of dividend or spin-off, reclassification,
recapitalization or similar corporate rearrangement) on any Common Stock, other
than (A) a dividend payable in Additional Shares of Common Stock or in Options
for Common Stock or (B) a regular, periodic dividend payable in cash and
declared out of the earned surplus of the Company as at the date hereof as
increased by any credits (other than credits resulting from a revaluation of
property) and decreased by any debits made thereto after such date, then, and in
each such case, subject to section 2.8, the Warrant Price in effect immediately
prior to the close of business on the record date fixed for the determination of
holders of any class of securities entitled to receive such dividend or
distribution shall be reduced, effective as of the close of business on such
record date, to a price (calculated to the nearest .001 of a cent) determined by
multiplying such Warrant Price by a fraction,

                  (i) the numerator of which shall be the Current Market Price
         in effect on such record date or, if the


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         Common Stock trades on an ex-dividend basis, on the date prior to the
         commencement of ex-dividend trading, less the value of such dividend or
         distribution (as determined in good faith by the Board of Directors of
         the Company) applicable to one share of Common Stock, and

                  (ii) the denominator of which shall be such Current Market
         Price.

                  2.3. TREATMENT OF OPTIONS AND CONVERTIBLE SECURITIES. In case
the Company at any time or from time to time after the Initial Date shall issue,
sell, grant or assume, or shall fix a record date for the determination of
holders of any class of securities entitled to receive, any Options or
Convertible Securities, then, and in each such case, the maximum number of
Additional Shares of Common Stock (as set forth in the instrument relating
thereto, without regard to, any provisions contained therein for a subsequent
adjustment of such number) issuable upon the exercise of such Options or, in the
case of Convertible Securities and Options therefor, the conversion or exchange
of such Convertible Securities, shall be deemed to be issued for purposes of
section 2.2.1 as of the time of such issue, sale, grant or assumption or, in
case such a record date shall have been fixed, as of the close of business on
such record date (or, if the Common Stock trades on an ex-dividend basis, on the
date prior to the commencement of ex-dividend trading), PROVIDED that such
Additional Shares of Common Stock shall not be deemed to have been issued unless
the consideration per share (determined pursuant to section 2.5) of such shares
would be less than the Base Price in effect, in each case, on the date of and
immediately prior to such issue, sale, grant or assumption or immediately prior
to the close of business on such record date (or, if the Common Stock trades on
an ex-dividend basis, on the date prior to the commencement of ex-dividend
trading), as the case may be, and PROVIDED, FURTHER, that in any such case in
which Additional Shares of Common Stock are deemed to be issued,

                  (a) no further adjustment of the Warrant Price shall be made
         upon the subsequent issue or sale of Additional Shares of Common Stock
         or Convertible Securities upon the exercise of such Options or the
         conversion or exchange of such Convertible Securities;


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                  (b) if such Options or Convertible Securities by their terms
         provide, with the passage of time or otherwise, for any increase in the
         consideration payable to the Company, or decrease in the number of
         Additional Shares of Common Stock issuable, upon the exercise,
         conversion or exchange thereof (by change of rate or otherwise), the
         Warrant Price computed upon the original issue, sale, grant or
         assumption thereof (or upon the occurrence of the record date, or date
         prior to the commencement of ex-dividend trading, as the case may be,
         with respect thereto), and any subsequent adjustments based thereon,
         shall, upon any such increase or decrease becoming effective, be
         recomputed to reflect such increase or decrease insofar as it affects
         such Options, or the rights of conversion or exchange under such
         Convertible Securities, which are outstanding at such time;

                  (c) upon the expiration of any such Options or of the rights
         of conversion or exchange under any such Convertible Securities which
         shall not have been exercised (or upon purchase by the Company and
         cancellation or retirement of any such Options which shall not have
         been exercised or of any such Convertible Securities the rights of
         conversion or exchange under which shall not have been exercised), the
         Warrant Price computed upon the original issue, sale, grant or
         assumption thereof (or upon the occurrence of the record date, or date
         prior to the commencement of ex-dividend trading, as the case may be,
         with respect thereto), and any subsequent adjustments based thereon,
         shall, upon such expiration (or such cancellation or retirement, as the
         case may be), be recomputed as if:

                          (i) in the case of Options for Common Stock or of
                  Convertible Securities, the only Additional Shares of Common
                  Stock issued or sold were the Additional Shares of Common
                  Stock, if any, actually issued or sold upon the exercise of
                  such Options or the conversion or exchange of such Convertible
                  Securities and the consideration received therefor was (X) an
                  amount equal to (A) the consideration actually received by the
                  Company for the issue, sale, grant or assumption of all such
                  Options, whether or not exercised, plus (B) the consideration
                  actually received by the Company


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                  upon such exercise, minus (C) the consideration paid by the
                  Company for any purchase of such Options which were not
                  exercised, or (Y) an amount equal to (A) the consideration
                  actually received by the Company for the issue, sale, grant or
                  assumption of all such Convertible Securities which were
                  actually converted or exchanged, plus (B) the additional
                  consideration, if any, actually received by the Company upon
                  such conversion or exchange, minus (C) the consideration paid
                  by the Company for any purchase of such Convertible Securities
                  the rights of conversion or exchange under which were not
                  exercised, and

                           (ii) in the case of Options for Convertible
                  Securities, only the Convertible Securities, if any, actually
                  issued or sold upon the exercise of such Options were issued
                  at the time of the issue, sale, grant or assumption of such
                  Options, and the consideration received by the Company for the
                  Additional Shares of Common Stock deemed to have then been
                  issued was an amount equal to (X) the consideration actually
                  received by the Company for the issue, sale, grant or
                  assumption of all such Options, whether or not exercised, plus
                  (Y) the consideration deemed to have been received by the
                  Company (pursuant to section 2.5) upon the issue or sale of
                  the Convertible Securities with respect to which such Options
                  were actually exercised, minus (Z) the consideration paid by
                  the Company for any purchase of such Options which were not
                  exercised;

                  (d) no readjustment pursuant to subdivision (b) or (c) above
         shall have the effect of increasing the Warrant Price by an amount in
         excess of the amount of the adjustment thereof originally made in
         respect of the issue, sale, grant or assumption of such Options or
         Convertible Securities; and

                  (e) in the case of any such Options which expire by their
         terms not more than 30 days after the date of issue, sale, grant or
         assumption thereof, no adjustment of the Warrant Price shall be made
         until the expiration or exercise of all such Options, whereupon such
         adjustment shall be made in the manner provided in subdivision (c)
         above.


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                  In case at any time after the Initial Date the Company shall
be required to increase the number of Additional Shares of Common Stock subject
to any Option or into which any Convertible Securities (other than the Warrants)
are convertible or exchangeable pursuant to the operation of anti-dilution
provisions applicable thereto, such Additional Shares shall be deemed to be
issued for purposes of section 2.1 as of the time of such increase.

                  2.4. TREATMENT OF STOCK DIVIDENDS, STOCK SPLITS, ETC. In case
the Company at any time or from time to time after the Initial Date shall
declare or pay any dividend or other distribution on any class of stock of the
Company payable in Common Stock, or shall effect a subdivision of the
outstanding shares of Common Stock into a greater number of shares of Common
Stock (by reclassification or otherwise than by payment of a dividend in Common
Stock) , then, and in each such case, Additional Shares of Common Stock shall be
deemed to have been issued (A) in the case of any such dividend, immediately
after the close of business on the record date for the determination of holders
of any class of securities entitled to receive such dividend, or (B) in the case
of any such subdivision, at the close of business on the day immediately prior
to the day upon which such corporate action becomes effective.

                  2.5. COMPUTATION OF CONSIDERATION. For the purposes of this
section 2:

                  (a) The consideration for the issue or sale of any Additional
         Shares of Common Stock or for the issue, sale, grant or assumption of
         any Options or Convertible Securities, irrespective of the accounting
         treatment of such consideration, shall

                           (i) insofar as it consists of cash, be computed at
                  the amount of cash received by the Company, after deducting
                  any expenses paid or incurred by the Company or any
                  commissions or compensation paid or concessions or discounts
                  allowed to underwriters, dealers or others performing similar
                  services and any accrued interest or dividends in connection
                  with such issue or sale,

                           (ii) insofar as it consists of consideration
                  (including securities) other than cash, be


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                  computed at the Fair Value thereof at the time of such issue
                  or sale, after deducting any expenses paid or incurred by the
                  Company for any commissions or compensation paid or
                  concessions or discounts allowed to underwriters, dealers or
                  others performing similar services and any accrued interest or
                  dividends in connection with such issue or sale, and

                           (iii) in case Additional Shares of Common Stock are
                  issued or sold or Convertible Securities are issued, sold,
                  granted or assumed together with other stock or securities or
                  other assets of the Company for a consideration which covers
                  both, be the proportion of such consideration so received,
                  computed as provided in subdivisions (i) and (ii) above,
                  allocable to such Additional Shares of Common Stock or
                  Convertible Securities, as the case may be, all as determined
                  in good faith by the Board of Directors of the Company.

                  (b) All Options issued, sold, granted or assumed together with
         other stock or securities or other assets of the Company for a
         consideration which covers both, all Additional Shares of Common Stock,
         Options or Convertible Securities issued in payment of any dividend or
         other distribution on any class of stock of the Company and all
         Additional Shares of Common Stock issued to effect a subdivision of the
         outstanding shares of Common Stock into a greater number of shares of
         Common Stock (by reclassification or otherwise than by payment of a
         dividend in Common Stock) shall be deemed to have been issued without
         consideration.

                  (c) Additional Shares of Common Stock deemed to have been
         issued for consideration pursuant to section 2.3, relating to Options
         and Convertible Securities, shall be deemed to have been issued for a
         consideration per share determined by dividing

                           (i) the total amount, if any, received and receivable
                  by the Company as consideration for the issue, sale, grant or
                  assumption of the Options or Convertible Securities in
                  question, plus the minimum aggregate amount of additional
                  consideration (as set forth in the instruments relating
                  thereto, without regard to any provision


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                  contained therein for a subsequent adjustment of such
                  consideration) payable to the Company upon the exercise in
                  full of such Options or the conversion or exchange of such
                  Convertible Securities or, in the case of Options for
                  Convertible Securities, the exercise of such Options for
                  Convertible Securities and the conversion or exchange of such
                  Convertible Securities, in each case computing such
                  consideration as provided in the foregoing subdivision (a),

         by

                           (ii) the maximum number of shares of Common Stock (as
                  set forth in the instruments relating thereto, without regard
                  to any provision contained therein for a subsequent adjustment
                  of such number) issuable upon the exercise of such Options or
                  the conversion or exchange of such Convertible Securities.

                  (d) Additional Shares of Common Stock issued or deemed to have
         been issued pursuant to the operation of anti-dilution provisions
         applicable to Convertible Securities (other than the Warrants), Options
         or other securities of the Company (either as a result of the
         adjustments provided for by the Warrants or otherwise) shall be deemed
         to have been issued without consideration.

                  2.6. ADJUSTMENTS FOR COMBINATIONS, ETC. In case the
outstanding shares of Common Stock shall be combined or consolidated, by
reclassification or otherwise, into a lesser number of shares of Common Stock,
the Warrant Price in effect immediately prior to such combination or
consolidation shall, concurrently with the effectiveness of such combination or
consolidation, be proportionately increased.

                  2.7. DILUTION IN CASE OF OTHER SECURITIES. In case any Other
Securities shall be issued or sold or shall become subject to issue or sale upon
the conversion or exchange of any stock (or Other Securities) of the Company (or
any issuer of Other Securities or any other Person referred to in section 3) or
to subscription, purchase or other acquisition pursuant to any Options issued or
granted


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by the Company (or any such other issuer or Person) for a consideration such as
to dilute, on a basis consistent with the standards established in the other
provisions of this section 2, the purchase rights granted by this Warrant, then,
and in each such case, the computations, adjustments and readjustments provided
for in this section 2 with respect to the Warrant Price shall be made as nearly
as possible in the manner so provided and applied to determine the amount of
Other Securities from time to time receivable upon the exercise of the Warrants,
so as to protect the holders of the Warrants against the effect of such
dilution.

                  2.8. MINIMUM ADJUSTMENT OF WARRANT PRICE. If the amount of any
adjustment of the Warrant Price required pursuant to this section 2 would be
less than one one-hundredth (.01) of a cent, such amount shall be carried
forward and adjustment with respect thereto made at the time of and together
with any subsequent adjustment which, together with such amount and any other
amount or amounts so carried forward, shall aggregate at least one one-hundredth
(.01) of a cent.

                  3. CONSOLIDATION, MERGER, SALE OF ASSETS, REORGANIZATION,
ETC.. In case the Company, after the Initial Date, (A) shall consolidate with or
merge into any other Person and shall not be the continuing or surviving
corporation of such consolidation or merger, or (B) shall permit any other
Person to consolidate with or merge into the Company and the Company shall be
the continuing or surviving Person but, in connection with such consolidation or
merger, Common Stock or Other Securities shall be changed into or exchanged for
cash, stock or other securities of any other Person or any other property, or
(C) shall transfer all or substantially all of its properties and assets to any
other Person, or (D) shall effect a capital reorganization or reclassification
of Common Stock or Other Securities (other than a capital reorganization or
reclassification resulting in the issue of Additional Shares of Common Stock for
which adjustment in the Warrant Price is provided in section 2.2.1 or 2.2.2),
then, and in the case of each such transaction, the Company shall give written
notice thereof to each holder of any Warrant not less than 30 days prior to the
consummation thereof and proper provision shall be made so that, upon the basis
and the terms and in the manner provided in this section 3, the holder of this
Warrant, upon the consummation of such transaction, shall be entitled to
receive, at the aggregate Warrant Price in effect at the


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time of such consummation for all Common Stock (or Other Securities) issuable
upon such exercise immediately prior to such consummation, in lieu of the Common
Stock (or Other Securities) issuable upon such exercise prior to such
consummation, the highest amount of cash, securities or other property to which
such holder would actually have been entitled as a shareholder upon such
consummation if such holder had exercised this Warrant immediately prior
thereto, subject to adjustments (subsequent to such consummation) as nearly
equivalent as possible to the adjustments provided for in section 2 and this
section 3, PROVIDED that if a purchase, tender or exchange offer shall have been
made to and accepted by the holders of Common Stock under circumstances in
which, upon completion of such purchase, tender or exchange offer, the maker
thereof, together with members of any group (within the meaning of Rule
13d-5(b)(1) under the Exchange Act) of which such maker is a part, and together
with any affiliate or associate of such maker (within the meaning of Rule 12b-2
under the Exchange Act) and any members of any such group of which any such
affiliate or associate is a part, own beneficially (within the meaning of Rule
13d-3 under the Exchange Act) more than 50% of the outstanding shares of Common
Stock, and if the holder of this Warrant so designates in such notice given to
the Company, the holder of this Warrant shall be entitled to receive the highest
amount of cash, securities or other property to which such holder would actually
have been entitled as a shareholder if the holder of this Warrant had exercised
this Warrant prior to the expiration of such purchase, tender or exchange offer,
accepted such offer and all of the Common Stock held by such holder had been
purchased pursuant to such purchase, tender or exchange offer, subject to
adjustments (from and after the consummation of such purchase, tender or
exchange offer) as nearly equivalent as possible to the adjustments provided for
in section 2 and this section 3.

                  4. OTHER DILUTIVE EVENTS. In case any event shall occur as to
which the provisions of section 2 or section 3 are not strictly applicable but
the failure to make any adjustment would not fairly protect the purchase rights
represented by this Warrant in accordance with the essential intent and
principles of such sections, then, in each such case, the Company shall appoint
a firm of independent public accountants of recognized national standing (which
may be the regular auditors of the Company), which shall give their opinion upon
the adjustment, if any,


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on a basis consistent with the essential intent and principles established in
sections 2 and 3, necessary to preserve, without dilution, the purchase rights
represented by this Warrant. Upon receipt of such opinion the Company will
promptly mail a copy thereof to the holder of this Warrant and shall make the
adjustments described therein.

                  5. NO DILUTION OR IMPAIRMENT. The Company will not, by
amendment of its certificate of incorporation or through any consolidation,
merger, reorganization, transfer of assets, dissolution, issue or sale of
securities or any other voluntary action, avoid or seek to avoid the observance
or performance of any of the terms of this Warrant, but will at all times in
good faith assist in the carrying out of all such terms and in the taking of all
such action as may be necessary or appropriate in order to protect the rights of
the holder of this Warrant against dilution or other impairment. Without
limiting the generality of the foregoing, the Company (A) will not permit the
par value of any shares of stock receivable upon the exercise of this Warrant to
exceed the amount payable therefor upon such exercise, (B) will take all such
action as may be necessary or appropriate in order that the Company may validly
and legally issue fully paid and nonassessable shares of stock upon the exercise
of all of the Warrants from time to time outstanding, (C) will not take any
action which results in any adjustment of the Warrant Price if the total number
of shares of Common Stock (or Other Securities) issuable after the action upon
the exercise of all of the Warrants would exceed the total number of shares of
Common Stock (or other Securities) then authorized by the Company's certificate
of incorporation and available for the purpose of issue upon such exercise and,
(D) will not issue any capital stock of any class which has the right to more
than one vote per share or which is preferred as to dividends or as to the
distribution of assets upon voluntary or involuntary dissolution, liquidation or
winding-up, unless such stock is sold for a cash consideration at least equal to
the amount of its preference upon voluntary or involuntary dissolution,
liquidation or winding-up and the rights of the holders thereof shall be limited
to a fixed percentage (not exceeding 15%) of such cash consideration in respect
of participation in dividends.

                  6. ACCOUNTANTS' REPORT AS TO ADJUSTMENTS. In each case of any
adjustment or readjustment in the shares of Common Stock (or Other Securities)
issuable upon the


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exercise of the Warrants, the Company at its expense will promptly compute such
adjustment or readjustment in accordance with the terms of the Warrants and
cause independent public accountants of recognized national standing selected by
the Company (which may be the regular auditors of the Company) to verify such
computation and prepare a report setting forth such adjustment or readjustment
and showing in reasonable detail the method of calculation thereof and the facts
upon which such adjustment or readjustment is based, including without
limitation a statement of (A) the consideration received or to be received by
the Company for any Additional Shares of Common Stock issued or sold or deemed
to have been issued, (B) the number of shares of Common Stock outstanding or
deemed to be outstanding, and (C) the Warrant Price in effect immediately prior
to such issue or sale and as adjusted and readjusted (if required by section 2)
on account thereof. The Company will forthwith mail a copy of each such report
to each holder of a Warrant and will, upon the written request at any time of
any holder of a Warrant, furnish to such holder a like report setting forth the
Warrant Price at the time in effect and showing in reasonable detail how it was
calculated. The Company will also keep copies of all such reports at its
principal office and will cause the same to be available for inspection at such
office during normal business hours by any holder of a Warrant or any
prospective purchaser of a Warrant designated by the holder thereof.

                  7.  NOTICES OF CORPORATE ACTION.  In the event of

                  (a) any taking by the Company of a record of the holders of
         any class of securities for the purpose of determining the holders
         thereof who are entitled to receive any dividend (other than a regular
         periodic dividend payable in cash out of earned surplus) or other
         distribution, or any right to subscribe for, purchase or otherwise
         acquire any shares of stock of any class or any other securities or
         property, or to receive any other right, or

                  (b) any capital reorganization of the Company, any
         reclassification or recapitalization of the capital stock of the
         Company or any consolidation or merger involving the Company and any
         other Person or any transfer of all or substantially all the assets of
         the Company to any other Person, or


                                       15
<PAGE>


                  (c) any voluntary or involuntary dissolution, liquidation or
         winding-up of the Company,

the Company will mail to each holder of a Warrant a notice specifying (I) the
date or expected date on which any such record is to be taken for the purpose of
such dividend, distribution or right, and the amount and character of such
dividend, distribution or right, and (II) the date or expected date on which any
such reorganization, reclassification, recapitalization, consolidation, merger,
transfer, dissolution, liquidation or winding-up is to take place and the time,
if any such time is to be fixed, as of which the holders of record of Common
Stock (or Other Securities) shall be entitled to exchange their shares of Common
Stock (or Other Securities) for the securities or other property deliverable
upon such reorganization, reclassification, recapitalization, consolidation,
merger, transfer, dissolution, liquidation or winding-up. Such notice shall be
mailed at least 20 days prior to the date therein specified, in the case of any
date referred to in the foregoing subdivision (i), and at least 90 days prior to
the date therein specified, in the case of the date referred to in the foregoing
subdivision (ii).

                  8. RESTRICTIONS ON TRANSFER. 8.1. RESTRICTIVE LEGENDS. Except
as otherwise permitted by this section 8, each Warrant originally issued
pursuant to the Purchase Agreement and each Warrant issued upon direct or
indirect transfer or in substitution for any Warrant pursuant to section 13
shall be stamped or otherwise imprinted with a legend in substantially the
following form:

                  "This Warrant and any shares acquired upon the exercise of
         this Warrant have not been registered under the Securities Act of 1933
         and may not be transferred in the absence of such registration or an
         exemption therefrom under such Act."

Except as otherwise permitted by this section 8, each certificate for Common
Stock (or Other Securities) issued upon the exercise of any Warrant and each
certificate issued upon the direct or indirect transfer of any such Common Stock
(or Other Securities) shall be stamped or otherwise imprinted with a legend in
substantially the following form:

                  "The shares represented by this certificate have not been
         registered under the Securities Act of 1933


                                       16
<PAGE>


         and may not be transferred in the absence of such registration or an
         exemption therefrom under such Act. Such shares are also subject to
         certain restrictions on transferability imposed by Common Stock
         Purchase Warrants expiring August 25, 2005, a copy of which is on file
         at the offices of the Company."

                  8.2. NOTICE OF PROPOSED TRANSFER; OPINIONS OF COUNSEL. Prior
to any transfer of any Restricted Securities which are not registered under an
effective registration statement under the Securities Act (other than a transfer
pursuant to Rule 144 or any comparable rule under such Act), the holder thereof
will give written notice to the Company of such holder's intention to effect
such transfer and to comply in all other respects with this section 8.2. Each
such notice (A) shall describe the manner and circumstances of the proposed
transfer in sufficient detail to enable counsel to render the opinions referred
to below, and (B) shall designate counsel for the holder giving such notice (who
may be in-house counsel for such holder). The holder giving such notice will
submit a copy thereof to the counsel designated in such notice. The following
provisions shall then apply:

                  (i) If in the opinion of counsel for the holder the proposed
         transfer may be effected without registration, such holder shall
         thereupon be entitled to transfer such Restricted Securities in
         accordance with the terms of the notice delivered by such holder to the
         Company. Each Warrant or certificate, if any, issued upon or in
         connection with such transfer shall bear the appropriate restrictive
         legend set forth in section 8.1 unless, in the opinion of such counsel,
         such legend is no longer required to insure compliance with the
         Securities Act.

                  (ii) If the opinion of such counsel for the holder is not to
         the effect that the proposed transfer may legally be effected without
         registration of such Restricted Securities under the Securities Act,
         such holder shall not be entitled to transfer such Restricted
         Securities (other than in a transfer pursuant to Rule 144 or any
         comparable rule under the Securities Act) until the conditions
         specified in subdivision (i) above shall be satisfied or until
         registration of such Restricted Securities under the Securities Act has
         become effective.


                                       17

<PAGE>


Notwithstanding the foregoing provisions of this section 8.2, the holder of any
Restricted Securities shall be permitted to transfer any such Restricted
Securities pursuant to Rule 144A under the Securities Act, PROVIDED that each
transferee agrees in writing to be bound by all the restrictions on transfer of
such Restricted Securities contained in this section 8.2. The Company will pay
the reasonable fees and disbursements of counsel (other than in-house counsel)
for any holder of Restricted Securities and of counsel for the Company in
connection with all opinions rendered by them pursuant to this section 8.2 and
pursuant to section 8.3.

                  8.3. TERMINATION OF RESTRICTIONS. The restrictions imposed by
this section 8 upon the transferability of Restricted Securities shall cease and
terminate as to any particular Restricted Securities (A) when such securities
shall have been effectively registered under the Securities Act and disposed of
in accordance with the registration statement covering such Restricted
Securities, (B) when, in the opinions of both counsel for the holder thereof and
counsel for the Company, such restrictions are no longer required in order to
insure compliance with the Securities Act, or (C) when such securities have been
beneficially owned, by a person who has not been an affiliate of the Company for
at least three months, for a period of at least two years, all as determined
under Rule 144 under the Securities Act. Whenever such restrictions shall
terminate as to any Restricted Securities, as soon as practicable thereafter and
in any event within five days, the holder thereof shall be entitled to receive
from the Company, without expense (other than transfer taxes, if any), new
securities of like tenor not bearing the applicable legend set forth in section
8.1 hereof.

                  9. REGISTRATION UNDER SECURITIES ACT, ETC. The shares issuable
upon exercise of this Warrant shall be entitled to the registration rights set
forth in the Registration Rights Agreement.

                  10. AVAILABILITY OF INFORMATION. The Company will cooperate
with each holder of any Restricted Securities in supplying such information as
may be necessary for such holder to complete and file any information reporting
forms presently or hereafter required by the Commission as a condition to the
availability of an exemption from the


                                       18
<PAGE>


Securities Act for the sale of any Restricted Securities. The Company will
furnish to each holder of any Warrants, promptly upon their becoming available,
copies of all financial statements, reports, notices and proxy statements sent
or made available generally by the Company to its stockholders, and copies of
all regular and periodic reports and all registration statements and
prospectuses filed by the Company with any securities exchange or with the
Commission.

                  11. RESERVATION OF STOCK, ETC. The Company will at all times
reserve and keep available, solely for issuance and delivery upon exercise of
the Warrants, the number of shares of Common Stock (or Other Securities) from
time to time issuable upon exercise of all Warrants at the time outstanding. All
shares of Common Stock (or Other Securities) shall be duly authorized and, when
issued upon such exercise, shall be validly issued and, in the case of shares,
fully paid and nonassessable with no liability on the part of the holders
thereof.

                  12. LISTING ON SECURITIES EXCHANGE. The Company will list on
each national securities exchange on which any Common Stock may at any time be
listed, subject to official notice of issuance upon exercise of the Warrants,
and will maintain such listing of, all shares of Common Stock from time to time
issuable upon exercise of the Warrants. The Company will also so list on each
national securities exchange, and will maintain such listing of, any other
securities if at the time any securities of the same class shall be listed on
such national securities exchange by the Company.

                  13. OWNERSHIP, TRANSFER AND SUBSTITUTION OF WARRANTS. 13.1.
OWNERSHIP OF WARRANTS. The Company may treat the person in whose name any
Warrant is registered on the register kept at the principal office of the
Company as the owner and holder thereof for all purposes, notwithstanding any
notice to the contrary, except that, if and when any Warrant is properly
assigned in blank, the Company may (but shall not be obligated to) treat the
bearer thereof as the owner of such Warrant for all purposes, notwithstanding
any notice to the contrary. Subject to section 8, a Warrant, if properly
assigned, may be exercised by a new holder without first having a new Warrant
issued.


                                       19
<PAGE>


                  13.2. TRANSFER AND EXCHANGE OF WARRANTS. Upon the surrender of
any Warrant, properly endorsed, for registration of transfer or for exchange at
the principal office of the Company, the Company at its expense will (subject to
compliance with section 8, if applicable) execute and deliver to or upon the
order of the holder thereof a new Warrant or Warrants of like tenor, in the name
of such holder or as such holder (upon payment by such holder of any applicable
transfer taxes) may direct, calling in the aggregate on the face or faces
thereof for the number of shares of Common Stock called for on the face or faces
of the Warrant or Warrants so surrendered.

                  13.3. REPLACEMENT OF WARRANTS. Upon receipt of evidence
reasonably satisfactory to the Company of the loss, theft, destruction or
mutilation of any Warrant and, in the case of any such loss, theft or
destruction of any Warrant held by a Person other than any institutional
investor, upon delivery of indemnity reasonably satisfactory to the Company in
form and amount or, in the case of any such mutilation, upon surrender of such
Warrant for cancellation at the principal office of the Company, the Company at
its expense will execute and deliver, in lieu thereof, a new Warrant of like
tenor.

                  14. DEFINITIONS. As used herein, unless the context otherwise
requires, the following terms have the following respective meanings:

                  ACQUIRING PERSON: the continuing or surviving corporation of a
consolidation or merger with the Company (if other than the Company), the
transferee of substantially all of the properties and assets of the Company, the
corporation consolidating with or merging into the Company in a consolidation or
merger in connection with which the Common Stock is changed into or exchanged
for stock or other securities of any other Person or cash or any other property,
or, in the case of a capital reorganization or reclassification, the Company.

                  ACQUISITION PRICE: as applied to the Common Stock, with
respect to any transaction to which section 3 applies, (A) the price per share
equal to the greater of the following, determined in each case as of the date
immediately preceding the date of consummation of such transaction: (I) the
Market Price of the Common Stock and (II) the highest amount of cash plus the
Fair Value of the


                                       20
<PAGE>


highest amount of securities or other property which the holder of this Warrant
would have been entitled as a shareholder to receive upon such consummation if
such holder had exercised this Warrant immediately prior thereto, or (B) if a
purchase, tender or an exchange offer is made by the Acquiring Person (or by any
of its affiliates) to the holders of the Common Stock and such offer is accepted
by the holders of more than 50% of the outstanding shares of Common Stock, the
greater of (I) the price determined in accordance with the foregoing,
subdivision (a) and (II) the price per share equal to the greater of the
following, determined in each case as of the date immediately preceding the
acceptance of such offer by the holders of more than 50% of the outstanding
shares of Common Stock: (X) the Market Price of the Common Stock and (Y) the
highest amount of cash plus the Fair Value of the highest amount of securities
or other property which the holder of this Warrant would be entitled as a
shareholder to receive pursuant to such offer if such holder had exercised this
Warrant immediately prior to the expiration of such offer and accepted the same.

                  ADDITIONAL SHARES OF COMMON STOCK: all shares (including
treasury shares) of Common Stock issued or sold (or, pursuant to section 2.3 or
2.4, deemed to be issued) by the Company after the Initial Date hereof, whether
or not subsequently reacquired or retired by the Company, other than (A) shares
of Common Stock issued upon the exercise of Warrants and (B) the Options listed
on Schedule A hereto.

                  BASE PRICE: as of any date of determination, the lesser of (A)
$4.00 and (B) the Current Market Price as of such date.

                  BUSINESS DAY: any day other than a Saturday or a Sunday or a
day on which commercial banking institutions in the City of New York are
authorized by law to be closed, PROVIDED that, in determining the period within
which certificates or Warrants are to be issued and delivered pursuant to
section 1.3 at a time when shares of Common Stock (or Other Securities) are
listed or admitted to trading on any national securities exchange or in the
over-the-counter market and in determining the Market Price of any securities
listed or admitted to trading on any national securities exchange or in the
over-the-counter market, "Business Day" shall mean any day when the principal
exchange in which securities are then listed or admitted to trading is open for
trading or, if such securities are


                                       21
<PAGE>


traded in the over-the-counter market in the United States, such market is open
for trading, and PROVIDED, FURTHER, that any reference to "days" (unless
Business Days are specified) shall mean calendar days.

                  COMMISSION: the Securities and Exchange Commission or any
other Federal agency at the time administering the Securities Act or the
Exchange Act, whichever is the relevant statute for the particular purpose.

                  COMMON STOCK: the Company's Common Stock, par value $.005 per
share, as constituted on the date hereof, any stock into which such Common Stock
shall have been changed or any stock resulting from any reclassification of such
Common Stock, and all other stock of any class or classes (however designated)
of the Company the holders of which have the right, without limitation as to
amount, either to all or to a share of the balance of current dividends and
liquidating dividends after the payment of dividends and distributions on any
shares entitled to preference.

                  COMPANY: Eco Soil Systems, Inc., a Nebraska corporation.

                  CONVERTIBLE SECURITIES: any evidences of indebtedness, shares
of stock (other than Common Stock) or other securities directly or indirectly
convertible into or exchangeable for Additional Shares of Common Stock.

                  CURRENT MARKET PRICE: on any date specified herein, (A) with
respect to Common Stock, (I) the lesser of (X) the average daily Market Price
during the period of the most recent 20 consecutive Business Days ending on such
date and (Y) the Market Price on the Business Day immediately preceding such
date, or (II) if shares of Common Stock are not then listed or admitted to
trading on any national securities exchange and if the closing bid and asked
prices thereof are not then quoted or published in the over-the-counter market,
the Market Price on such date; and (B) with respect to any other securities, the
Market Price on such date.

                  EXCHANGE ACT: the Securities Exchange Act of 1934, or any
similar Federal statute, and the rules and regulations of the Commission
thereunder, all as the same shall be in effect at the time. Reference to a
particular


                                       22
<PAGE>


section of the Securities Exchange Act of 1934 shall include a reference to the
comparable section, if any, of any such similar Federal statute.

                  FAIR VALUE: with respect to any securities or other property,
the Fair Value thereof as of a date which is within 15 days of the date as of
which the determination is to be made (A) determined by an agreement between the
Company and the Requisite Holders of Warrants or (B) if the Company and the
Requisite Holders of Warrants fail to agree, determined jointly by an
independent investment banking firm retained by the Company and by an
independent investment banking firm retained by the Requisite Holders of
Warrants, either of which firms may be an independent investment banking firm
regularly retained by the Company or any such holder or (C) if the Company or
such holders shall fail so to retain an independent investment banking firm
within five Business Days of the retention of such firm by such holders or the
Company, as the case may be, determined solely by the firm so retained or (D) if
the firms so retained by the Company and by such holders shall be unable to
reach a joint determination within 15 Business Days of the retention of the last
firm so retained, determined by another independent investment banking firm
which is not a regular investment banking firm of the Company or any such holder
chosen by the first two such firms.

                  INITIAL DATE: the meaning specified in section 2.2.

                  MARKET PRICE: on any date specified herein, (A) with respect
to Common Stock, the amount per share equal to (I) the last sale price of shares
of such security, regular way, on such date or, if no such sale takes place on
such date, the average of the closing bid and asked prices thereof on such date,
in each case as officially reported on the principal national securities
exchange on which the same are then listed or admitted to trading, or (II) if no
shares of such security are then listed or admitted to trading on any national
securities exchange but such security is designated as a national market system
security by the NASD, the last trading price of such security on such date, or
if such security is not so designated, the average of the reported closing bid
and asked prices thereof on such date as shown by the NASD automated quotation
system or, if no shares thereof are then quoted in such system, as published by
the National Quotation Bureau, Incorporated or any


                                       23
<PAGE>


successor organization, and in either case as reported by any member firm of the
New York Stock Exchange selected by the Company, or (III) if no shares of such
security are then listed or admitted to trading on any national exchange or
designated as a national market system security and if no closing bid and asked
prices thereof are then so quoted or published in the over-the-counter market,
the higher of (X) the book value thereof as determined by agreement between the
Company and the Requisite Holders of Warrants, or if the Company and the
Requisite Holders of Warrants fail to agree, by any firm of independent public
accountants of recognized standing selected by the Board of Directors of the
Company, as of the last day of any month ending within 60 days preceding the
date as of which the determination is to be made or (Y) the fair value thereof
determined in good faith by the Board of Directors of the issuer thereof as of a
date which is within 15 days of the date as of which the determination is to be
made; and (B) with respect to any other securities, the fair value thereof
determined in good faith by the Board of Directors of the Company as of a date
which is within 15 days of the date as of which the determination is to be made.

                  NASD: the National Association of Securities Dealers.

                  NOTES: the meaning specified in the opening paragraphs of this
Warrant.

                  OPTIONS: rights, options or warrants to subscribe for,
purchase or otherwise acquire either Additional Shares of Common Stock or
Convertible Securities.

                  OTHER SECURITIES: any stock (other than Common Stock) and
other securities of the Company or any other Person (corporate or otherwise)
which the holders of the Warrants at any time shall be entitled to receive, or
shall have received, upon the exercise of the Warrants, in lieu of or in
addition to Common Stock, or which at any time shall be issuable or shall have
been issued in exchange for or in replacement of Common Stock or Other
Securities pursuant to section 3 or otherwise.

                  PARENT: as to any Acquiring Person, any corporation which (A)
controls the Acquiring Person directly or indirectly through one or more
intermediaries, (B) is required to include the Acquiring Person in its
consolidated


                                       24
<PAGE>


financial statements under generally accepted accounting principles and (C) is
not itself included in the consolidated financial statements of any other Person
(other than its consolidated subsidiaries).

                  PERSON: an individual, a partnership, an association, a joint
venture, a corporation, a limited liability company, a business, a trust, an
unincorporated organization or a government or any department, agency or
subdivision thereof.

                  PUBLIC OFFERING: any offering of Common Stock to the public
pursuant to an effective registration statement under the Securities Act.

                  PURCHASE AGREEMENT: the meaning specified in the opening
paragraphs of this Warrant.

                  REGISTRATION RIGHTS AGREEMENT: that certain Registration
Rights Agreement, dated December 21, 1999, among the Company, Albion Alliance
Mezzanine Fund, L.P. and Paribas Capital Funding LLC.

                  REQUISITE HOLDERS OF WARRANTS: the holders of at least 60% of
all the Warrants at the time outstanding determined on the basis of the number
of shares of Common Stock or Other Securities deliverable upon exercise thereof.

                  RESTRICTED SECURITIES: (A) any Warrants bearing the applicable
legend set forth in section 8.1, (B) any shares of Common Stock (or Other
Securities) which have been issued upon the exercise of Warrants and which are
evidenced by a certificate or certificates bearing the applicable legend set
forth in such section, and (C) unless the context otherwise requires, any shares
of Common Stock (or Other Securities) which are at the time issuable upon the
exercise of Warrants and which, when so issued, will be evidenced by a
certificate or certificates bearing the applicable legend set forth in such
section.

                  SECURITIES ACT: the Securities Act of 1933, or any similar
Federal statute, and the rules and regulations of the Commission thereunder, all
as the same shall be in effect at the time. Reference to a particular section of
the Securities Act of 1933 shall include a reference to the comparable section,
if any, of any such similar Federal statute.


                                       25
<PAGE>


                  SUBSIDIARY: any corporation, association or other business
entity at least 50% (by number of votes) of the Voting Common Stock of which is
at the time owned by the Company or by one or more Subsidiaries or by the
Company and one or more Subsidiaries.

                  TRANSFER: unless the context otherwise requires, any sale,
assignment, pledge or other disposition of any security, or of any interest
therein, which could constitute a "sale" as that term is defined in section 2(3)
of the Securities Act.

                  VOTING COMMON STOCK: with respect to any corporation,
association or other business entity, stock of any class or classes (or
equivalent interest) , if the holders of the stock of such class or classes (or
equivalent interests) are ordinarily, in the absence of contingencies, entitled
to vote for the election of a majority of the directors (or persons performing
similar functions) of such corporation, association or business entity, even if
the right so to vote has been suspended by the happening of such a contingency.

                  WARRANT PRICE: the meaning specified in section 2.1.

                  WARRANTS: the meaning specified in the opening paragraphs of
this Warrant.

                  15. REMEDIES. The Company stipulates that the remedies at law
of the holder of this Warrant in the event of any default or threatened default
by the Company in the performance of or compliance with any of the terms of this
Warrant are not and will not be adequate and that, to the fullest extent
permitted by law, such terms may be specifically enforced by a decree for the
specific performance of any agreement contained herein or by an injunction
against a violation of any of the terms hereof or otherwise.

                  16. NO RIGHTS OR LIABILITIES AS STOCKHOLDER. Nothing contained
in this Warrant shall be construed as conferring upon the holder hereof any
rights as a stockholder of the Company or as imposing any liabilities on such
holder to purchase any securities or as a stockholder of the Company, whether
such liabilities are asserted by the Company or by creditors or stockholders of
the Company or otherwise.


                                       26
<PAGE>


                  17. NOTICES. All notices and other communications under this
Agreement shall be in writing and shall be delivered by hand, facsimile
transmission or courier service, or mailed by registered or certified mail,
return receipt requested, addressed (A) if to any holder of any Warrant or any
holder of any Common Stock (or Other Securities), at the registered address of
such holder as set forth in the register kept at the principal office of the
Company, or (B) if to the Company, to the attention of its Chief Financial
Officer, at its principal office, PROVIDED that the exercise of any Warrant
shall be effected in the manner provided in section 1.

                  18. MISCELLANEOUS. This Warrant and any term hereof may be
changed, waived, discharged or terminated only by an instrument in writing
signed by the party against which enforcement of such change, waiver, discharge
or termination is sought. The agreements of the Company contained in this
Warrant, other than those applicable solely to the Warrants and the holders
thereof, shall inure to the benefit of and be enforceable by any holder or
holders at the time of any Common Stock (or Other Securities) issued upon the
exercise of Warrants, whether so expressed or not. This Warrant shall be
construed and enforced in accordance with and governed by the laws of the State
of New York. The section headings in this Warrant are for purposes of
convenience only and shall not constitute a part hereof.



                    [SIGNATURE APPEARS ON THE FOLLOWING PAGE]





                                       27
<PAGE>


                  19. EXPIRATION. The right to exercise this Warrant shall
expire at 3 P.M., New York City time, on August 25, 2005.



                                                     ECO SOIL SYSTEMS, INC.



                                                     By: /s/ Dennis N. Sentz
                                                        ------------------------
                                                        Title: CFO


                                       28
<PAGE>


                              FORM OF SUBSCRIPTION

                 (To be executed only upon exercise of Warrant)


To
   -----------------

                  The undersigned registered holder of the within Warrant hereby
irrevocably exercises such Warrant for, and purchases thereunder, _____________1
shares of Common Stock of ECO SOIL SYSTEMS, INC., a Nebraska corporation, and
herewith makes payment of $________ therefor [by application pursuant to section
1.5 of such Warrant of $________ aggregate principal amount of Notes (as defined
in such Warrant) plus $________ accrued interest thereon],2 and requests that
the certificates for such shares be issued in the name of, and delivered to
________ whose address is ________.

                  [The undersigned hereby instructs you to credit the principal
amount of each Note so applied against the installments of principal remaining
unpaid on such Note in the ________ order of their maturity dates.]

Dated: ______________


                                            ---------------------------
                                            (Signature must conform in all
                                            respects to name of holder as
                                            specified on the face of this
                                            Warrant)

                                            [insert address]


--------
1 Insert here the number of shares called for on the face of this Warrant (or,
in the case of a partial exercise, the portion thereof as to which this Warrant
is being exercised), in either case without making any adjustment for additional
Common Stock or any other stock or other securities or property or cash which,
pursuant to the adjustment provisions of this Warrant, may be delivered upon
exercise. In the case of a partial exercise, a new warrant or Warrants will be
issued and delivered, representing the unexercised portion of this Warrant, to
the holder surrendering the same.

2 Delete inapplicable language in brackets.


                                       29
<PAGE>


                               FORM OF ASSIGNMENT

                 (To be executed only upon transfer of Warrant)

                  For value received, the undersigned registered holder of the
within Warrant hereby sells, assigns and transfers unto ________ the right
represented by such Warrant to purchase ________ shares of Common Stock of ECO
SOIL SYSTEMS, INC., a Nebraska corporation, to which such Warrant relates, and
appoints ________ Attorney to make such transfer on the books of ________
maintained for such purpose, with full power of substitution in the premises.


Dated:
       -------------

                                            -------------------------
                                            (Signature must conform in all
                                            respects to name of holder as
                                            specified on the face of this
                                            Warrant)



                                            [insert address]



Signed in the presence of:


-------------------------


                                       30
<PAGE>






================================================================================












                             ECO SOIL SYSTEMS, INC.






                         ------------------------------

                              AMENDED AND RESTATED
                          COMMON STOCK PURCHASE WARRANT

                         ------------------------------





                            Expiring August 25, 2005











================================================================================


<PAGE>


                                TABLE OF CONTENTS

<TABLE>

<S>                                                                                                    <C>
1.     Exercise of Warrant...............................................................................1
         1.1.   Manner of Exercise.......................................................................1
         1.2.   When Exercise Deemed Effected............................................................2
         1.3.   Delivery of Stock Certificates, etc......................................................2
         1.4.   Company to Reaffirm Obligations..........................................................3
         1.5.   Payment by Application of the Notes......................................................3

2.     Adjustment of Common Stock Issuable Upon Exercise.................................................4
         2.1.   Number of Shares; Warrant Price..........................................................4
         2.2.   Adjustment of Warrant Price..............................................................4
             2.2.1.   Issuance of Additional Shares of Common Stock......................................5
             2.2.2.   Extraordinary Dividends and Distributions..........................................6
         2.3.   Treatment of Options and Convertible Securities..........................................6
         2.4.   Treatment of Stock Dividends, Stock Splits, etc..........................................9
         2.5.   Computation of Consideration.............................................................9
         2.6.   Adjustments for Combinations, etc.......................................................11
         2.7.   Dilution in Case of Other Securities....................................................11
         2.8.   Minimum Adjustment of Warrant Price.....................................................12

3.     Consolidation, Merger, Sale of Assets, Reorganization, etc.......................................12

4.     Other Dilutive Events............................................................................13

5.     No Dilution or Impairment........................................................................14

6.     Accountants' Report as to Adjustments............................................................14

7.     Notices of Corporate Action......................................................................15

8.     Restrictions on Transfer.........................................................................16
         8.1.   Restrictive Legends.....................................................................16
         8.2.   Notice of Proposed Transfer; Opinions of Counsel........................................17
         8.3.   Termination of Restrictions.............................................................18

9.    Registration under Securities Act, etc............................................................18

10.   Availability of Information.......................................................................18

</TABLE>


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<PAGE>


<TABLE>

<S>                                                                                                    <C>
11.    Reservation of Stock, etc........................................................................19

12.    Listing on Securities Exchange...................................................................19

13.    Ownership, Transfer and Substitution of Warrants.................................................19
         13.1.  Ownership of Warrants...................................................................19
         13.2.  Transfer and Exchange of Warrants.......................................................20
         13.3.  Replacement of Warrants.................................................................20

14.    Definitions......................................................................................20

15.    Remedies.........................................................................................26

16.    No Rights or Liabilities as Stockholder..........................................................26

17.    Notices..........................................................................................27

18.    Miscellaneous....................................................................................27

19.    Expiration.......................................................................................28

</TABLE>


Form of Subscription
Form of Notice

Schedule of Outstanding Options


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