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                                                                   Exhibit 10.06

                                 PROMISSORY NOTE

                                                         Santa Clara, California
$250,000.00                                    EFFECTIVE DATE: FEBRUARY 28, 2000


        FOR VALUE RECEIVED, the undersigned, John R. Ferron, an individual
(hereinafter, "DEBTOR"), hereby promises to pay to THE KINETICS GROUP, INC., a
Delaware corporation (hereinafter, "LENDER"), in lawful money of the United
States of America, the sum of Two Hundred Fifty Thousand Dollars ($250,000),
plus interest at the rate set forth below.

               Interest. From the effective date of this Note until paid,
interest shall accrue on the unpaid balance hereof at the rate of 8% annually or
the maximum rate allowed by law, whichever is less, on the unpaid balance
hereof.

               Payment. The principal amount of this Note and all accrued
interest shall become due and payable in a single lump sum on the earlier of 180
days following the date of termination of Debtor's employment with the Lender if
for Cause (as such term is defined in the Stock Option Award Agreement between
them dated October 24, 2000), or December 31, 2005.

               Prepayment. DEBTOR may prepay all or any portion of this NOTE
without penalty.

               Collection Costs Borne by DEBTOR. In the event of any failure on
the part of DEBTOR to make any payment within 15 days after written notice by
LENDER that such payment is due, LENDER shall be entitled to recover from DEBTOR
all costs of effecting collection, including reasonable attorneys' fees. Unpaid
principal and interest subject to collection shall bear interest at the maximum
rate allowed by law.

               Default by DEBTOR. The entire unpaid principal balance of this
NOTE shall, at the election of LENDER, become immediately due and payable upon
the occurrence of any of the following events of default:

               a. The failure of DEBTOR to make any interest or principal
        payment required hereunder within 15 days after written notice by LENDER
        that such payment is due.

               b. The filing by DEBTOR of a voluntary petition in bankruptcy,
arrangement, or other relief under federal bankruptcy law, or a voluntary
petition for the appointment of a receiver or for such other relief under the
laws of any State, or the making by DEBTOR of an assignment of all or
substantially all of its assets for the


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benefit of creditors.

               c. The adjudication of DEBTOR as a bankrupt or insolvent, the
appointment of a receiver of all or substantially all of DEBTOR's assets if such
adjudication, order, or appointment is made upon a petition filed against DEBTOR
and is not, within 60 days after it is made, vacated or stayed on appeal or
otherwise, or if DEBTOR by any action or failure to act signifies its approval
thereof, consent thereto, and acquiescence therein.

               Governing Law. This NOTE shall be construed and enforced in
accordance with the laws of the State of California.

               Successors. This NOTE shall be binding upon and shall inure to
the benefit of the parties and their respective representatives, heirs,
administrators, successors and assigns, except as otherwise provided in this
NOTE.

               Written Modification. No modification to this NOTE, nor any
waiver of any rights, shall be effective unless assented to in writing by the
party to be charged, and the waiver of any breach or default shall not
constitute a waiver of any other right or any subsequent breach or default.

               Severability. If any of the provisions of this NOTE are
determined to be invalid or unenforceable, the remaining provisions shall be
deemed severable and shall continue in full force and effect.

        DEBTOR has set its hand to this NOTE effective as of the date set forth
above.

                                            DEBTOR:

                                            /s/ John R. Ferron
                                            ------------------------------------
                                            John R. Ferron


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