RESIGNATION AGREEMENT AND GENERAL RELEASE

     This Resignation Agreement and General Release ("Agreement") is entered
into between Heska Corporation ("EMPLOYER") and Ronald Hendrick ("EMPLOYEE").
EMPLOYER and EMPLOYEE may be referred to in this Agreement together as the
"Parties," or individually as a "Party."  For purposes of this Agreement,
EMPLOYER includes any company related to EMPLOYER, in the past or present; the
past and present officers, directors, employees, shareholders, investors,
attorneys, agents and representatives of the EMPLOYER; any present or past
employee benefit plan sponsored by EMPLOYER and/or the officers, directors,
trustees, administrators, employees, attorneys, agents and representatives of
such plan; and any person who acted on behalf of EMPLOYER or on instruction from
EMPLOYER.

     In exchange for the releases and other agreements specified in this
Agreement, the Parties agree as follows:

   A.  EMPLOYEE'S RESIGNATION.  EMPLOYEE resigned as an employee of EMPLOYER
       effective May 31, 2002 (the "Resignation Date").  EMPLOYEE will not apply
       for or otherwise seek or accept future employment or reinstatement with
       EMPLOYER.  Even though EMPLOYER will pay EMPLOYEE to settle and release
       any claims, EMPLOYER does not admit that it is legally obligated to
       EMPLOYEE and EMPLOYER denies that it is responsible or legally obligated
       for any claims or that it has engaged in any improper conduct or
       wrongdoing against EMPLOYEE.

   B.  EMPLOYEE'S CONTINUING OBLIGATION TO PRESERVE EMPLOYER'S CONFIDENTIAL
       INFORMATION.  EMPLOYEE acknowledges that he has entered into a Non-
       Disclosure Agreement with EMPLOYER (the "Confidentiality Agreement") and
       that by reason of his position with EMPLOYER he has been given access to
       confidential information with respect to the business affairs of
       EMPLOYER.  [Examples include any trade secrets, manufacturing plans, new
       product information, customer lists, etc.] EMPLOYEE represents that he
       has held all such information confidential and will continue to do so in
       accordance with his obligations under the Confidentiality Agreement and
       will not engage in any conduct or activity reasonably related to his
       employment with the EMPLOYER which is likely to have an adverse effect on
       the operations of the EMPLOYER.  EMPLOYEE further agrees that he will not
       disclose, or cause to be disclosed in any way, any confidential
       information or documents obtained as a result of or in connection with
       his employment with EMPLOYER to any third person, without the express,
       written consent of EMPLOYER.

   C.  SETTLEMENT CONSIDERATION FOR EMPLOYEE.  EMPLOYER has paid EMPLOYEE all
       employment compensation and has provided EMPLOYEE with all benefits to
       which EMPLOYEE is entitled through and including the Resignation Date,
       with the exception of EMPLOYEE's paycheck for the period ending May 31,
       2002 and a Management Incentive Bonus due to EMPLOYEE in the amount of
       $45,264.  The parties agree that EMPLOYER shall pay EMPLOYEE his paycheck
       for the period ending May 31, 2002 and the Management Incentive Bonus in
       the amount of $45,264.00 on May 31, 2002.  EMPLOYER will make the
       following additional payments to EMPLOYEE and will provide EMPLOYEE with
       the benefits and consideration set forth herein in exchange for
       EMPLOYEE'S release of EMPLOYER and in settlement of any claim or claims
       EMPLOYEE may have against EMPLOYER.


        1.  SETTLEMENT PAYMENT.  As consideration for EMPLOYEE'S release of all
            claims against EMPLOYER, EMPLOYER will pay EMPLOYEE twelve months
            base salary at the rate in effect immediately prior to the
            Resignation Date in twelve equal monthly installments (subject to
            all applicable taxes and other deductions), with the first such
            installment due 30 days after the Resignation Date and with the
            following eleven installments due no later than monthly thereafter
            on EMPLOYER'S then regular payroll dates.  Payment will be in the
            form of an EMPLOYER'S check to EMPLOYEE which will be mailed to him
            at his residence address or direct deposited in EMPLOYEE's personal
            bank account, in accordance with EMPLOYER'S regular payroll
            practices.

        2.  MEDICAL AND DENTAL PAYMENTS.  Provided that EMPLOYEE timely elects
            continuation coverage under the Consolidated Omnibus Budget
            Reconciliation Act of 1985, as amended ("COBRA"), EMPLOYER shall
            pay, on his behalf, the portion of premiums of EMPLOYEE'S group
            health insurance, including coverage for EMPLOYEE'S eligible
            dependents, that EMPLOYER paid prior to EMPLOYEE'S termination of
            employment with Heska.  EMPLOYER will pay such premiums for
            EMPLOYEE'S eligible dependents only for coverage for which those
            dependents were enrolled immediately prior to EMPLOYEE'S termination
            of employment.  EMPLOYEE will continue to be required to pay that
            portion of the premium of his health coverage, including coverage
            for his eligible dependents, that he was required to pay as an
            active employee immediately prior to his termination
            of employment.  EMPLOYEE is eligible for twelve (12) months of such
            premium payments beginning June 1, 2002  through May 31, 2003.
            For the balance of the period that EMPLOYEE is entitled to coverage
            under COBRA, EMPLOYEE shall be entitled to maintain coverage for
            himself and his eligible dependents at his own expense.

        3.  CAREER TRANSITION.  Within three (3) business days of the Effective
            Date, EMPLOYER will provide a check for $2,000.00 payable to
            EMPLOYEE after the Resignation Date that may be used for
            professional career transition purposes.

        4.  VESTING/EXPIRATION OF STOCK OPTIONS/RESTRICTED STOCK.  The vesting
            schedule for stock options currently vested and exercisable as of
            the Resignation Date will remain unchanged and no shares will
            continue to vest following the Resignation Date.  However, effective
            as of the Resignation Date, EMPLOYEE shall be entitled to
            acceleration of an additional one year's vesting from the
            Resignation Date.  In addition, the exercise period following the
            Resignation Date in which all vested options must be exercised will
            be extended from three months to twelve months.  EMPLOYEE
            understands that if he exercises such vested options after the 90th
            day following his Resignation Date, any option that was originally
            intended to qualify as an ISO, or incentive stock option, will be
            converted to an NSO, or nonstatutory stock option.

            The vesting schedule for EMPLOYEE'S restricted stock which is vested
            as of the Resignation Date will remain unchanged and no shares will
            continue to vest following the Resignation Date.  However, effective
            as of the Resignation Date, EMPLOYER agrees to waive its repurchase
            right and permit the acceleration of an additional one year's
            vesting of such restricted shares.  The value of the one year's
            worth of accelerated shares will be set as of the closing bid price
            of the EMPLOYER'S common stock on the Resignation Date.  EMPLOYEE
            will be solely liable for any tax liability assessed in connection
            with the accelerated shares. EMPLOYER also hereby notifies EMPLOYEE
            of its intention to repurchase from EMPLOYEE all unvested restricted
            shares at a price of $0.001 per share which shall be paid to
            EMPLOYEE prior to the 120th day following the Resignation Date.
            Other than as specifically set forth herein, all other terms of
            EMPLOYER'S 1997 Stock Incentive Plan and the individual stock
            agreements entered into between EMPLOYEE and EMPLOYER (collectively
            the "Stock Agreements") shall apply to such stock options and
            restricted stock.

        5.  EMPLOYMENT AGREEMENT.  EMPLOYEE acknowledges that this Agreement
            supercedes and replaces EMPLOYER'S obligations to pay severance
            pursuant to the Employment Agreement dated December 1, 1998 entered
            into between the parties.

               (a)  Such payment as set forth herein shall be treated by
            EMPLOYER as income to EMPLOYEE from which ordinary federal and state
            withholding and taxes shall be deducted.  Furthermore,
            notwithstanding the Mutual Release as set forth in Section E,
            EMPLOYEE will indemnify and hold EMPLOYER harmless from any costs,
            liability or expense, including reasonable attorney's fees, arising
            from the taxation, if any of any amounts received by EMPLOYEE
            pursuant to this Agreement, including but not limited to any
            penalties, administrative expenses, or any claim for any loss, cost,
            damage, or expense arising out of any dispute over the non-
            withholding, or other tax treatment or any of the consideration,
            stock and stock options received by EMPLOYEE as a result of this
            Agreement.  EMPLOYEE represents that he has sought independent
            advice on the possible tax treatment of the consideration paid
            pursuant to this Agreement and is not relying on any representations
            by EMPLOYER as to any potential tax consequences or liabilities that
            may be owed by EMPLOYEE under this Agreement.

   D.  RETURN OF COMPANY PROPERTY.  EMPLOYEE represents that to the best of his
       knowledge he has returned all of  EMPLOYER'S property including, but not
       limited to, EMPLOYER confidential and proprietary documents, materials,
       keys, credit cards, laptops, computer disks and badges.  EMPLOYER
       represents that it is not aware of any Company property that has been
       retained by EMPLOYEE.

   E.  MUTUAL RELEASE.

        1.  GENERAL RELEASE.  EMPLOYEE agrees that the consideration stated
            herein represents settlement in full of all outstanding obligations
            owed to EMPLOYEE by EMPLOYER.  EMPLOYEE understands this Agreement
            is a knowing and voluntary waiver of claims by EMPLOYEE related to
            his employment with and separation from EMPLOYER.  In exchange for
            the consideration set forth in this Agreement, and except for
            matters specifically provided in this Agreement, the parties, on
            behalf of themselves, their representatives, successors and assigns,
            release, and forever discharge each other from any and all claims,
            demands, damages, losses, obligations, rights and causes of action,
            whether known or unknown, including but not limited to, all claims,
            causes of action or administrative complaints that each now has or
            has ever had against each other relating in any way to EMPLOYEE'S
            employment with EMPLOYER.  The parties agree not to bring any
            lawsuits against each other relating to the claims that each has
            released nor will either party allow any to be brought or continued
            on the party's behalf or in the party's name (the "RELEASED
            CLAIMS").

            The RELEASED CLAIMS include but are not limited to those which arise
            out of, relate to, or are based upon: (i) EMPLOYEE'S employment with
            EMPLOYER or the termination thereof, (ii) statements, acts or
            omissions by EMPLOYER whether in its individual or representative
            capacities, (iii) express or implied agreements between the Parties,
            (iv) any and all claims relating to or arising from EMPLOYEE'S right
            to purchase or actual purchase of shares of stock of EMPLOYER
            including without limitation any claims for fraud,
            misrepresentation, breach of fiduciary duty, breach of duty under
            applicable state corporate law, and securities fraud under any state
            or federal law, provided however that the parties reserve their
            rights to indemnification as set forth in Section C5(a) and E(4),
            respectively; and (v) all state and federal statutes, including but
            not limited to claims based on race, sex, disability, age, or any
            other characteristic of EMPLOYEE under the Americans with
            Disabilities Act, the Older Worker's Benefit Protection Act, the
            Fair Labor Standards Act, the Equal Pay Act, Title VII of the Civil
            Rights Act of 1964 (as amended), the Civil Rights Act of 1991, the
            Civil Rights Acts of 1866 and 1871, the Family and Medical Leave
            Act, the National Labor Relations Act, the Occupational Safety and
            Health Act, the Rehabilitation Act, Executive Order 11246, the
            Colorado Labor Peace Act, the Colorado Wage Claim Act, the
            Employee's Retirement Income Security Act of 1974, the
            Rehabilitation Act of 1973, and/or the Worker Adjustment and
            Retraining Notification Act, and all federal and common law.  The
            RELEASED CLAIMS include, but are not limited to, claims related to
            the negotiation and execution of this Agreement, including but not
            limited to claims that this Agreement was fraudulently induced.
            Notwithstanding the foregoing, EMPLOYER specifically reserves any
            claim or cause of action it may have against EMPLOYEE based upon
            intentional unlawful conduct.  EMPLOYER represents that as of the
            date of its execution of this Agreement, it is not aware of any act
            or omission of EMPLOYEE that constitutes intentional unlawful
            conduct.

        2.  EMPLOYEE'S SPECIFIC ADEA RELEASE OF EMPLOYER.  EMPLOYEE acknowledges
            and agrees that by entering into this Agreement he is waiving any
            and all rights that he may have arising from the Age Discrimination
            in Employment Act of 1967 ("ADEA"), as amended, which have arisen on
            or before the date of execution of this Agreement.  EMPLOYEE further
            expressly acknowledges and agrees that:

            a. EMPLOYEE is entering this Agreement voluntarily.

            b. EMPLOYEE understands and agrees that, by signing the Agreement,
               he is giving up any right to file legal proceedings against the
               EMPLOYER arising before the date of the Agreement.  EMPLOYEE is
               not waiving (or giving up) rights or claims that may arise after
               the date the Agreement is executed.

            c. In return for this Agreement, EMPLOYEE will receive compensation
               due him as a result of this Resignation Agreement and General
               Release.

            d. EMPLOYEE is hereby advised in writing by this Agreement to
               consult with an attorney before signing this Agreement.

            e. EMPLOYEE understands that he has at least twenty-one (21) days
               from the day he received this Agreement, not counting the day
               upon which he received it, to consider whether he wishes to sign
               this Agreement.  If he cannot make up his mind in that period of
               time, EMPLOYER may or may not allow more time.  EMPLOYEE further
               acknowledges that if he signs this Agreement before the end of
               the twenty-one (21) day period, it will be his personal,
               voluntary decision to do so and he has not been pressured to make
               a decision sooner.

            f. Nothing in this Agreement prevents or precludes EMPLOYEE from
               challenging or seeking a determination in good faith of the
               validity of this waiver under the ADEA, nor does it impose any
               condition precedent, penalties or costs from doing so, unless
               specifically authorized by federal law.

            g. RIGHT TO RESCIND.  EMPLOYEE further understands that he may
               rescind (that is, cancel) this Agreement for any reason within
               seven (7) calendar days after signing it.  EMPLOYEE agrees that
               the rescission must be in writing and hand-delivered or mailed to
               EMPLOYER.  If mailed, the rescission must be postmarked within
               the seven (7) day period, properly addressed to:

                    HESKA CORPORATION
                    ATTN:  MARK CICOTELLO
                    VP, HUMAN RESOURCES
                    1613 PROSPECT PARKWAY
                    FORT COLLINS, CO  80525

               and sent by certified mail, return receipt requested.

               EMPLOYEE understands that he will not receive any settlement
               payment under this Agreement if he revokes or rescinds it, and in
               any event, EMPLOYEE will not receive any settlement until after
               the seven (7) day revocation period has expired.

        3.  UNKNOWN FACTS.  This Agreement includes claims of every nature and
            kind, known or unknown, suspected or unsuspected.  The parties
            hereby acknowledge that they may hereafter discover facts different
            from, or in addition to, those which they now know to be or believe
            to be true with respect to this Agreement, and they agree that this
            Agreement and the release contained herein shall be and remain
            effective in all respects, notwithstanding such different or
            additional facts or the discovery thereof.

        4.  INDEMNIFICATION.  Notwithstanding anything in this Agreement to the
            contrary, EMPLOYER acknowledges and agrees to fulfill any
            indemnification and defense obligations it may have to EMPLOYEE, by
            virtue of his status as an executive officer of EMPLOYER, for acts
            committed within the scope of his employment by EMPLOYER, to the
            same extent as its obligations to indemnify and defend EMPLOYER's
            other executive officers.

   F.  CONFIDENTIALITY OF AGREEMENT.  EMPLOYEE agrees to keep this Agreement
       confidential and will not communicate the terms of this Agreement, the
       facts or circumstances giving rise to this Agreement, or the fact that
       such Agreement exists, to any third party except, as necessary, his
       immediate family, accountants, legal or financial advisors or otherwise
       appropriate or necessary as required by law or court order.

   G.  NO COOPERATION.  EMPLOYEE agrees that he will not act in any manner that
       might damage the business of EMPLOYER.  EMPLOYEE agrees that he will not
       encourage, counsel or assist any attorneys or their clients in the
       presentation or prosecution of any disputes, differences, grievances,
       claims, charges, or complaints by any third party against any of the
       Releasees, unless under a subpoena or other court order to do so.
       EMPLOYEE shall inform EMPLOYER in writing within three (3) days of
       receiving any such subpoena or other court order.

   H.  NON-DISPARAGMENT.  The parties agree to refrain from any
       defamation, libel or slander of each other, and any tortious interference
       with contracts, relationships, and prospective economic advantage.
       EMPLOYEE agrees not to disparage or otherwise make negative statements or
       comments about or relating to EMPLOYER.  Mark Cicotello and Robert Grieve
       agree not to disparage or otherwise make negative statements or comments
       about or relating to EMPLOYEE and the parties agree that all inquiries
       regarding EMPLOYEE's employment with EMPLOYER shall be directed to either
       Mr. Cicotello or Mr. Grieve and the information released in connection
       with such inquiries shall be limited to EMPLOYEE'S dates of employment
       and job responsibilities held.

   I.  NO PENDING OR FUTURE LAWSUITS.  EMPLOYEE represents that he has no
       lawsuits, claims, or actions pending in his name, or on behalf of any
       other person or entity, against the Company or any other person or entity
       referred to herein.  EMPLOYEE also represents that he does not intend to
       bring any claims on his own behalf or on behalf of any other person or
       entity against EMPLOYER or any other person referred to herein.

   J.  ENFORCEMENT.  This Agreement does not release any claims for enforcement
       of the terms, conditions or warranties contained herein.  The Parties
       shall be free to pursue any remedies available to them to enforce this
       Agreement subject to paragraphs L and M.

   K.  SEVERABILITY.  If any provision of this Agreement is declared by any
       court of competent jurisdiction to be invalid for any reason, such
       invalidity shall not affect the remaining provisions of this Agreement,
        which shall be fully severable, and given full force and effect.

   L.  GOVERNING LAW AND JURISDICTION.  This Agreement shall be construed in
       accordance with the laws of Colorado, without regard to its conflicts of
       law provisions.  The Parties both consent to personal jurisdiction in
       Colorado.

   M.  ARBITRATION.  Unless prohibited by statutory or common law and except as
       provided below, any and all disputes arising under or related to this
       Agreement which cannot be resolved through negotiations between the
       Parties shall be submitted to binding arbitration.  If the Parties fail
       to reach a settlement of their dispute within fifteen (15) days after the
       date upon which one of the Parties notified the other(s) of its desire to
       resolve the dispute, then the dispute shall be promptly submitted to
       final and binding arbitration to be conducted privately and
       confidentially by a single arbitrator who is a member of the panel of
       former judges that makes up the Judicial Arbiter Group ("JAG"), any
       successor of JAG, or, if JAG or any successor is not in existence, any
       entity that can provide a former judge to serve as arbitrator.  The
       decision of the arbiter shall be final, non-appealable and binding upon
       the Parties and may be entered in any court of competent jurisdiction.
       Unless otherwise agreed by the Parties, the arbitration shall take place
       in Denver, Colorado.  The arbitrator shall be bound by the laws of the
       State of Colorado applicable to the issues involved in the arbitration
       and all Colorado rules relating to the admissibility of evidence,
       including, without limitation, all relevant privileges and the attorney
       work product doctrine.  The arbitrator shall have the power to grant
       equitable relief where applicable under Colorado law.  Notwithstanding
       the foregoing, either party may seek and obtain an injunction or other
       appropriate relief from a court to preserve or protect the status quo
       with respect to any matter pending conclusion of the arbitration
       proceeding, but no such application to a court shall in any way be
       permitted to stay or otherwise impede the progress of the arbitration
       proceeding.  The Parties agree that the prevailing party in any dispute
       arising under or related to this Agreement, including any dispute that is
       submitted to arbitration pursuant to this Section, shall be entitled to
       an award of his or its costs and expenses incurred in such dispute,
       including his or its reasonable attorney's fees, in addition to any other
       relief to which the party may be entitled.

   N.  ENTIRE AGREEMENT.  This Agreement represents the entire agreement and
       understanding between EMPLOYER and EMPLOYEE concerning EMPLOYEE'S
       employment with and separation from EMPLOYER and the events leading
       thereto and associated therewith, and supersedes and replaces any and all
       prior agreements and understandings concerning EMPLOYEE'S relationship
       with EMPLOYER, with the exception of the Confidentiality Agreement, the
       EMPLOYER'S Stock Plan and any applicable Stock Option Agreement between
       EMPLOYER and EMPLOYEE.

   O.  NO REPRESENTATIONS.  Each party represents that it has had the
       opportunity to consult with an attorney, and has carefully read and
       understands the scope and effect of the provisions of this Agreement.
       Neither party has relied upon any representations or statements made by
       the other party hereto which are not specifically set forth in this
       Agreement.

   P.  NO ORAL MODIFICATION.  Any modification or amendment of this Agreement,
       or additional obligation assumed by either party in connection with this
       Agreement, shall be effective only if placed in writing and signed by
       both Parties.  No provision of this Agreement can be changed, altered,
       modified, or waived except by an executed writing by both Parties.

   Q.  EFFECTIVE DATE.  The effective date of this Agreement shall be the eighth
       day after EMPLOYEE signs and returns this Agreement to EMPLOYER so long
       as he does not exercise his right to rescind this Agreement as set forth
       in Section E(2)(g).

CAUTION; PLEASE READ ENTIRE DOCUMENT BEFORE SIGNING

SIGNED:

Heska Corporation                       Employee

By: /s/ Robert B. Grieve                By: /s/Ronald L. Hendrick
   -------------------------------         -------------------------------
Typed Name:  Robert B. Grieve           Typed Name:  Ronald Hendrick

Title:  Chairman of the Board and CEO   Title: ___________________________

Date:    June 5, 2002                   SS#: ###-##-####
      ---------------------------
                                        Date:  May 29, 2002
                                              ----------------------------
By: /s/Mark Cicotello
- ---------------------------------
Typed Name:  Mark Cicotello

Title:  Vice President, Human Resources

Date:     May 29, 2002
      ---------------------------