Exhibit 10.07

                           COMMON SECURITY CERTIFICATE

     THIS COMMON SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED, OR ANY STATE SECURITIES LAWS OR ANY OTHER APPLICABLE
SECURITIES LAWS AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED
EXCEPT PURSUANT TO AN EXEMPTION FROM REGISTRATION.

     EXCEPT AS SET FORTH IN SECTION 8.1 (b) OF THE DECLARATION (AS DEFINED
BELOW), THIS SECURITY MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE
TRANSFERRED.

Certificate Number [C-001]                      Number of Common Securities: 619

                    Certificate Evidencing Common Securities
                                       of
                        Quanta Capital Statutory Trust II

     Quanta Capital Statutory Trust II, a statutory trust created under the laws
of the State of Delaware (the "Trust"), hereby certifies that Quanta Capital
Holdings Ltd. (the "Holder") is the registered owner of 619 common securities of
the Trust representing undivided beneficial interests in the assets of the Trust
(liquidation amount $1,000 per Common Security)(the "Common Securities"). The
Common Securities represented hereby are issued pursuant to, and the
designation, rights, privileges, restrictions, preferences and other terms and
provisions of the Common Securities shall in all respects be subject to, the
provisions of the Amended and Restated Declaration of Trust of the Trust, dated
as of February 24, 2005, among John S. Brittain, Jr. and Kenneth King, as
Administrators, Chase Manhattan Bank USA, National Association, as Delaware
Trustee, JPMorgan Chase Bank, National Association, as Institutional Trustee,
the Holder, as Sponsor, and the holders from time to time of undivided
beneficial interests in the assets of the Trust, including the designation of
the terms of the Common Securities as set forth in Annex I to the Declaration,
as the same may be amended from time to time (the "Declaration"). Capitalized
terms used herein but not defined shall have the meaning given them in the
Declaration. The Sponsor will provide a copy of the Declaration and the
Indenture to the Holder without charge upon written request to the Sponsor at
its principal place of business.

     As set forth in the Declaration, when an Event of Default has occurred and
is continuing, the rights of Holder of Common Securities to payment in respect
of Distributions and payments upon Liquidation, redemption or otherwise are
subordinated to the rights of payment of holders of the Capital Securities.

     By acceptance of this Certificate, the Holder is bound by the Declaration
and is entitled to the benefits thereunder.

     By acceptance of this Certificate, the Holder agrees to treat, for United
States federal income tax purposes, the Debentures as indebtedness and the
Common Securities as evidence of undivided beneficial ownership in the
Debentures.

     This Certificate and the Common Securities evidenced hereby are governed
by, and shall be construed in accordance with, the laws of the State of
Delaware, without regard to principles of conflict of laws.

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     IN WITNESS WHEREOF, the Trust has executed this Certificate February 24,
2005.

                                        Quanta Capital Statutory Trust II

                                        By: /s/ John S. Brittain, Jr.
                                            ------------------------------------
                                            Name: John S. Brittain, Jr.
                                            Title: Administrator

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                              [REVERSE OF SECURITY]

     Distributions payable on each Common Security will be identical in amount
to the Distributions payable on each Capital Security, which is at a variable
per annum rate of interest, reset quarterly, equal to LIBOR (as defined in the
Declaration) plus 3.5% (the "Coupon Rate") of the stated liquidation amount of
$1,000 per Common Security, such rate, such Coupon Rate being the rate of
interest payable on the Debentures to be held by the Institutional Trustee.
Distributions in arrears for more than one Distribution Period will bear
interest thereon compounded quarterly at the applicable Coupon Rate for each
such Distribution Period (to the extent permitted by applicable law). The term
"Distributions" as used herein includes cash distributions, any such compounded
distributions and any Additional Interest payable on the Debentures unless
otherwise stated. A Distribution is payable only to the extent that payments are
made in respect of the Debentures held by the Institutional Trustee and to the
extent the Institutional Trustee has funds legally available in the Property
Account therefor. The amount of Distributions payable for any period will be
computed on the basis of a 360-day year and the actual number of days elapsed in
the relevant Distribution Period.

     Except as otherwise described below, Distributions on the Common Securities
will be cumulative, will accrue from the date of original issuance and will be
payable quarterly in arrears on March 15, June 15, September 15 and December 15
of each year, commencing on June 15, 2005 (each, a "Distribution Payment Date").
Upon submission of Notice, the Debenture Issuer has the right under the
Indenture to defer payments of interest on the Debentures by extending the
interest distribution period for up to 20 consecutive quarterly periods (each
such extended interest payment period, together with all previous and future
consecutive extensions thereof, is referred to herein as an "Extension Period")
at any time and from time to time on the Debentures, subject to the conditions
described below and in the Declaration and the Indenture, during which Extension
Period no interest shall be due and payable (except any Additional Interest that
may be due and payable). During any Extension Period, interest will continue to
accrue on the Debentures, and interest on such accrued interest (such accrued
interest and interest thereon referred to herein as "Deferred Interest") will
accrue at an annual rate equal to the Coupon Rate in effect for each such
Extension Period, compounded quarterly from the date such Deferred Interest
would have been payable were it not for the Extension Period, to the extent
permitted by law. No Extension Period may end on a date other than a
Distribution Payment Date. At the end of any such Extension Period, the
Debenture Issuer shall pay all Deferred Interest then accrued and unpaid on the
Debentures; provided, however, that no Extension Period may extend beyond the
Maturity Date, and Redemption Date or Special Redemption Date. Prior to the
termination of any Extension Period, the Debenture Issuer may further extend
such Extension Period, provided, that such period together with all such
previous and further consecutive extensions thereof shall not exceed 20
consecutive quarterly periods, or extend beyond the Maturity Date. Upon the
termination of any Extension Period and upon the payment of all Deferred
Interest, the Debenture Issuer may commence a new Extension Period, subject to
the foregoing requirements. No interest or Deferred Interest (except any
Additional Interest that may be due and payable) shall be due and payable during
an Extension Period, except at the end thereof, but Deferred Interest shall
accrue upon each installment of interest that would otherwise have been due and
payable during such Extension Period until such installment is paid. If
Distributions are deferred, the Distributions due shall be paid on the date that
the related Extension Period terminates to

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Holders of the Securities as they appear on the books and records of the Trust
on the record date immediately preceding such date.

     Distributions on the Securities must be paid on the dates payable (after
giving effect to any Extension Period) to the extent that the Trust has funds
legally available for the payment of such distributions in the Property Account
of the Trust. The Trust's funds legally available for Distribution to the
Holders of the Securities will be limited to payments received from the
Debenture Issuer. The payment of Distributions out of moneys held by the Trust
is guaranteed by the Guarantor pursuant to the Guarantee.

The Common Securities shall be redeemable as provided in the Declaration.

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                                   ASSIGNMENT

     FOR VALUE RECEIVED, the undersigned assigns and transfers this Common
Security Certificate to:

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(Insert assignee's social security or tax identification number)

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(Insert address and zip code of assignee),

and irrevocably appoints ________ as agent to transfer this Common Security
Certificate on the books of the Trust. The agent may substitute another to act
for him or her.

Date:
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Signature:
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     (Sign exactly as your name appears on the other side of this Common
Security Certificate)

Signature Guarantee:(1)
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(1)  Signature must be guaranteed by an "eligible guarantor institution" that is
     a bank, stockbroker, savings and loan association or credit union, meeting
     the requirements of the Security registrar, which requirements include
     membership or participation in the Securities Transfer Agents Medallion
     Program ("STAMP") or such other "signature guarantee program" as may be
     determined by the Security registrar in addition to, or in substitution
     for, STAMP, all in accordance with the Securities Exchange Act of 1934, as
     amended.

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