Document:

Exhibit
10.1

 

THIRD
AMENDMENT

 

THIS
THIRD AMENDMENT
(this “Amendment”) dated as of March 24, 2006 is to the Amended and
Restated Credit Agreement (as previously amended, the “Credit Agreement”)
dated as of July 21, 2004 among TETRA TECH, INC. (the “Company”),
various financial institutions and BANK OF AMERICA, N.A., as administrative
agent (in such capacity, the “Administrative Agent”).  Unless otherwise defined herein, terms
defined in the Credit Agreement are used herein as defined therein.

 

WHEREAS, the parties hereto desire to amend the
Credit Agreement as set forth below;

 

NOW
THEREFORE, the
parties hereto agree as follows:

 

SECTION 1  AMENDMENTS.  Effective on the Amendment Effective Date (as
defined below), the Credit Agreement shall be amended as set forth below.

 

1.1  Permitted Loans.  Section 10.9 is amended in its entirety to
read as follows:

 

10.9  Loans
or Advances. Not, and not permit any Subsidiary to, make any loan or advance; except
for (i) loans or advances by the Company to any Subsidiary or by any Subsidiary
to the Company, (ii) loans and advances to officers and employees of the
Company and its Subsidiaries for travel, entertainment, relocation and similar
ordinary business purposes in an aggregate amount not exceeding $500,000 at any
time outstanding, (iii) the loans described on Schedule 10.9 and (iv)
other loans and advances in an aggregate amount not exceeding $5,000,000 at any
time outstanding.

 

1.2  Elimination of Maximum Availability Amount.  Section 11.3 is deleted.

 

1.3  Addition of Schedule 10.9.  The Schedule 10.9 attached to this
Amendment is added to the Credit Agreement as Schedule 10.9 thereto.

 

SECTION 2  REPRESENTATIONS AND WARRANTIES.  The Company represents and warrants to the
Administrative Agent and the Banks that (a) each warranty set forth in Section
9 of the Credit Agreement is (or after giving effect hereto will be) true and
correct as if made on the date hereof, (b) the execution and delivery by the
Company of this Amendment and the performance by the Company of its obligations
under the Credit Agreement as amended hereby (as so amended, the “Amended
Credit Agreement”) (i) are within the corporate powers of the Company, (ii)
have been duly authorized by all necessary corporate action, (iii) have
received all necessary governmental approval and (iv) do not and will not
contravene or conflict with any provision of law or of the charter or by-laws
of the Company or any Subsidiary or of any indenture, loan agreement or other
material contract, or any judgment, order or decree, which is binding upon the
Company or any Subsidiary, and (c) this Amendment and the Amended Credit
Agreement are legal, valid and binding obligations of the Company, enforceable
against the

 

 

 

Company
in accordance with their terms, except as enforceability may be limited by
bankruptcy, insolvency or other similar laws of general application affecting
the enforcement of creditor’s rights or by general principles of equity.

 

SECTION 3  EFFECTIVENESS.  The
amendments set forth in Section 1 shall become effective, as of the day
and year first above written, on the date (the “Amendment Effective Date”)
that the Administrative Agent has received each of the following:  (a) counterparts of this Amendment signed by
the Company and the Required Banks; (b) a Confirmation, substantially in the
form of Exhibit A hereto, signed by the Company and each Guarantor; (c)
evidence that the requisite holders of the notes under the Note Purchase
Agreement have entered into an amendment consistent herewith and otherwise in
form and substance reasonably satisfactory to the Administrative Agent; and (d)
confirmation that the Company has paid all amounts payable pursuant to Section
4.6 (to the extent then billed).

 

SECTION 4  MISCELLANEOUS.

 

4.1  Continuing Effectiveness, etc.  As herein amended, the Credit Agreement shall
remain in full force and effect and is hereby ratified and confirmed in all
respects.

 

4.2  Counterparts.  This Amendment may be signed in any number of
counterparts and by the different parties on separate counterparts, and each
such counterpart shall be deemed to be an original but all such counterparts
shall together constitute one and the same Amendment.  A counterpart hereof (or a signature page
hereto) delivered by facsimile shall be effective as delivery of an original
signed counterpart.

 

4.3  Governing Law.  This Amendment shall be a contract made under
and governed by the laws of the State of Illinois applicable to contracts made
and to be performed entirely within such State.

 

4.4  Successors and Assigns.  This Amendment shall be binding upon the
Company, the Administrative Agent and the Banks and their respective successors
and assigns and shall inure to the benefit of the Company, the Administrative
Agent and the Banks and the successors and assigns of the Administrative Agent
and the Banks.

 

4.5  Severability.  Each provision of this Amendment shall be
severable from every other provision of this Amendment for the purpose of
determining the legal enforceability of any provision hereof, and the unenforceability
of any provision hereof, and the unenforceability of one or more provisions of
this Amendment in one jurisdiction shall not have the effect of rendering such
provision or provisions unenforceable in any other jurisdiction.

 

4.6  Expenses.  The Company agrees to pay the reasonable
costs and expenses of the Administrative Agent and the Collateral Agent
(including reasonable attorneys’ fees and charges) in connection with the
preparation, execution and delivery of this Amendment and the documents contemplated
hereby.

 

4.7  Waiver.  The Required Lenders waive any failure of the
Company to comply with Section 10.9 of the Credit Agreement as a result of the
making of any loan described on Schedule 10.9 of this Amendment

 

 

2

 

[REMAINDER
OF PAGE INTENTIONALLY LEFT BLANK]

 

 

 

 

3

 

Delivered at
Chicago, Illinois, as of the day and year first above written.

 

	
   

  	
  TETRA TECH, INC.

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ David W. King

  
	
   

  	
  Title:

  	
  Chief Financial Officer
  and Treasurer

  
	
   

  	
   

  	
   

  
	
   

  	
  BANK OF AMERICA, N.A., as
  Administrative Agent

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ Ken Puro

  
	
   

  	
  Title:

  	
  Vice President

  
	
   

  	
   

  	
   

  
	
   

  	
  BANK OF AMERICA, N.A., as
  Swing Line Bank and as a Bank

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ Robert W. Troutman

  
	
   

  	
  Title:

  	
  Managing Director

  
	
   

  	
   

  	
   

  
	
   

  	
  U.S. BANK NATIONAL
  ASSOCIATION, as Documentation Agent and as a Bank

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ Joyce P. Dorsett

  
	
   

  	
  Title:

  	
  Vice President

  
	
   

  	
   

  	
   

  
	
   

  	
  WELLS FARGO BANK, N.A. as
  Syndication Agent and as a Bank

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ William C. Swiontek

  
	
   

  	
  Title:

  	
  Vice President

  
				

 

 

4

 

	
   

  	
  HARRIS TRUST AND SAVINGS
  BANK

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ David L. Mistic

  
	
   

  	
  Title:

  	
  Vice President

  
	
   

  	
   

  	
   

  
	
   

  	
  LASALLE BANK, N.A.

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
   

  
	
   

  	
  Title:

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
  UNION BANK OF CALIFORNIA

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ Jeffrey Mumm

  
	
   

  	
  Title:

  	
  Vice President

  
	
   

  	
   

  	
   

  
	
   

  	
  THE NORTHERN TRUST COMPANY

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ John E. Burda

  
	
   

  	
  Title:

  	
  Vice President

  
	
   

  	
   

  
				

 

 

5

 

EXHIBIT A TO THIRD AMENDMENT

FORM OF CONFIRMATION

 

Each of the undersigned acknowledges receipt of the
foregoing Third Amendment and confirms the continuing validity and
enforceability against such undersigned of each Loan Document to which such
undersigned is a party.

 

	
   

  	
  TETRA TECH, INC.

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ David W. King

  
	
   

  	
  David W. King

  
	
   

  	
  Chief Financial Officer and Treasurer

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  ADVANCED MANAGEMENT TECHNOLOGY, INC.

  ARDAMAN & ASSOCIATES, INC.

  COSENTINI ASSOCIATES, INC.

  ENGINEERING MANAGEMENT CONCEPTS, INC.

  EVERGREEN UTILITY CONTRACTORS, INC.

  FHC, INC.

  HARTMAN & ASSOCIATES, INC.

  KCM, INC.

  MFG, INC.

  RIZZO ASSOCIATES, INC.

  SCIENCES INTERNATIONAL, INC. 

  TETRA TECH CONSTRUCTION SERVICES, INC.

  TETRA TECH CONSULTING & REMEDIATION, INC.   

  TETRA TECH EM INC.

  TETRA TECH NUS, INC.

  TETRA TECH RMC, INC.

  THE THOMAS GROUP OF COMPANIES, INC.

  WHALEN & COMPANY, INC.

  WESTERN UTILITY CONTRACTORS, INC.

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ David W. King

  
	
   

  	
  David W. King

  
	
   

  	
  Treasurer

  
	
   

  	
   

  
	
   

  	
  GEOTRANS, INC.

  SCM CONSULTANTS, INC.

  TETRA TECH EC, INC.

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ David W. King

  
	
   

  	
  David W. King

  
	
   

  	
  Assistant Treasurer

  

 

 

 

 

SCHEDULE 10.9

PERMITTED LOANS

 

	
  Borrower

  	
   

  	
  Dr.
  Shawn Ziglari

  	
   

  	
  The
  Breakwater Companies, LLC

  	
   

  	
  Tetra
  Tech

  Canada Ltd.

  	
   

  	
  Tetra
  Tech

  Canada Ltd.

  
	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  
	
  Principal Amount

  	
   

  	
  $1,840,000

  	
   

  	
  $13,350,000

  	
   

  	
  C$1,170,000

   

  (US$1,000,000)

  	
   

  	
  C$4,620,000

   

  (US$3,960,000)

  
	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  
	
  Note Date

  	
   

  	
  10/1/05

  	
   

  	
  11/1/05

  	
   

  	
  12/1/05

  	
   

  	
  12/1/05

  
	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  
	
  Term

  	
   

  	
  2
  years

  	
   

  	
  4
  years

  	
   

  	
  60
  days

  	
   

  	
  2
  years

  
	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  
	
  Payment Schedule

  	
   

  	
  Quarterly

  	
   

  	
  Annually

  	
   

  	
  60
  days

  	
   

  	
  Annually

  
	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  	
   

  
	
  Balance due as of

  March 31, 2006

  	
   

  	
  $930,000

  	
   

  	
  $13,350,000

  	
   

  	
  $—

  	
   

  	
  C$4,620,000

   

  (US$3,960,000)Exhibit
10.2

 

TETRA
TECH, INC.

 

FIFTH
AMENDMENT TO NOTE PURCHASE AGREEMENT

 

Dated
as of March 24, 2006

 

To the Holders of the Senior Notes of Tetra
Tech, Inc.

Named in the Attached Schedule I (the “Noteholders”)

 

Ladies and Gentlemen:

 

Reference is made to the
Note Purchase Agreements, each dated as of May 15, 2001, as amended by the
First Amendment to Note Purchase Agreement dated as of September 30, 2001, the
Second Amendment to Note Purchase Agreement dated as of April 22, 2003, the
Third Amendment to Note Purchase Agreement dated as of December 14, 2004 and
the Fourth Amendment to Note Purchase Agreement dated as of May 12, 2005
(collectively, as in effect immediately prior to the effectiveness hereof, the “Existing Note Agreement”, and as amended
hereby, the “Note Agreement”), by
and between Tetra Tech, Inc., a Delaware corporation (the “Company”), and each of the Noteholders,
pursuant to which the Company issued $92,000,000 aggregate principal amount of
its 7.28% Senior Secured Notes, Series A, due May 30, 2011 (as amended,
collectively, the “Series A Notes”)
and $18,000,000 aggregate principal amount of its 7.08% Senior Secured Notes,
Series B, due May 30, 2008 (as amended, collectively, the “Series B Notes”, and, together with the
Series A Notes, the “Notes”).
Capitalized terms used and not otherwise defined herein shall have the meanings
ascribed to them in the Existing Note Agreement.

 

In connection with the
Company’s sale of all of the capital stock of its Subsidiaries Expert Wireless
Solutions, Inc., Vertex Engineering Services, Inc. and Tetra Tech Canada Ltd,
the Company has made certain loans (the “Loans”)
to certain purchasers of such entities, as evidenced by (i) that certain
promissory note dated October 1, 2005, from Dr. Shawn Ziglari in the aggregate
principal amount of $1,840,000, due September 30, 2007 (the “Ziglari Note”), (ii) that certain
promissory note dated November 1, 2005 from The Breakwater Companies, LLC in
the aggregate principal amount of $13,350,000, due November 1, 2009 (the “Breakwater Note”), (iii) that certain
promissory note dated December 1, 2005 from Tetra Tech Canada Ltd. in the
aggregate principal amount of C$1,170,000 (US$1,000,000) (the “Paid in Full Canada Note”) and (iv) that
certain promissory note dated December 1, 2005, from Tetra Tech Canada Ltd. in
the aggregate principal amount of C$4,620,000 (US$3,960,000), due December 1,
2007 (the “Second  Canada Note”, and together with the Ziglari
Note, the Breakwater Note and the Paid in Full Canada Note, collectively, the “Seller Notes”).

 

The Company has requested
that the Noteholders agree to amend and waive certain provisions of the Note
Agreement to permit the Loans, and the Noteholders have agreed to such
amendments and waiver on the terms and subject to the conditions set forth
herein.

 

In consideration of the
premises and for good and valuable consideration, the receipt and sufficiency
of which are acknowledged, the Company and the Noteholders hereby agree as
follows:

 

 

 

 

1.             AMENDMENT OF NOTE AGREEMENT.

 

                Subject
to the satisfaction of the conditions set forth in Section 4 of this Fifth
Amendment, the Noteholders and the Company agree as follows:

 

1.1.          Amendment of Section 10.13.
Section 10.13 of the Existing Note Agreement is hereby amended in its entirety
to read as follows:

 

“10.13  Loans and
Advances.

 

                The
Company will not, and will not permit any Subsidiary to, make any loan or
advance; except for (i) loans or advances by the Company to any Subsidiary or
by any Subsidiary to the Company, (ii) loans and advances to officers and
employees of the Company and its Subsidiaries for travel, entertainment,
relocation and similar ordinary business purposes in an aggregate amount not
exceeding $500,000 at any time outstanding, (iii) the loans described on
Schedule 10.13 and (iv) other loans and advances in an aggregate amount not
exceeding $5,000,000 at any time outstanding.”

 

1.2.          Addition of Schedule 10.13. The
Schedule 10.13 attached to this Fifth Amendment is hereby added to the Existing
Note Agreement as Schedule 10.13 thereto.

 

2.             WAIVER.

 

Subject to the
satisfaction of the conditions set forth in Section 4 of this Fifth Amendment,
the Required Holders hereby waive any Default or Event of Default existing as a
result of the failure of the Company to comply with Section 10.13(iii) of the
Existing Note Agreement caused by the making of any loan described on Schedule
10.13 attached hereto.

 

3.             REAFFIRMATION; REPRESENTATIONS AND
WARRANTIES.

 

3.1.          Reaffirmation of Note Agreement.
The Company reaffirms its agreement to comply with each of the covenants,
agreements and provisions of the Note Agreement, the Notes and the other
Financing Documents.

 

3.2.          Note Agreement. The Company
represents and warrants that the representations and warranties contained in
the Note Agreement are true and correct as of the date hereof, except (a) to
the extent that any of such representations and warranties specifically relate
to an earlier date, (b) for such changes, facts, transactions and occurrences
that have arisen since September 30, 2001 in the ordinary course of business,
(c) for such other matters as have been previously disclosed in writing by the
Company (including in its financial statements and notes thereto) to the
Noteholders and (d) for other changes that could not reasonably be expected to
have a Material Adverse Effect.

 

3.3.          No Default or Event of Default.
After giving effect to the waivers contemplated hereby, there will exist no
Default or Event of Default.

 

3.4.          Authorization and Enforceability.
The execution, delivery and performance by the Company of this Fifth Amendment
(and the acknowledgement of this Fifth Amendment by

 

 

 

2

 

the Subsidiaries) have been
duly authorized by all necessary corporate action. The Note Agreement, the
Notes, this Fifth Amendment and the other Financing Documents each constitute
the legal, valid and binding obligations of the Company and each Subsidiary
party thereto, enforceable in accordance with their respective terms, except as
such enforceability may be limited by (i) applicable bankruptcy, insolvency,
fraudulent conveyance, reorganization, moratorium or other similar laws
affecting the enforcement of creditors’ rights generally and (ii) general
principles of equity (regardless of whether such enforceability is considered
in a proceeding in equity or at law).

3.5.          Other Loans Outstanding. The
Company represents and warrants that as of the Effective Date (and after giving
effect to this Fifth Amendment), all loans and advances made by the Company or any
Subsidiary and permitted only under clause (iv) of Section 10.13 of the Note
Agreement are set forth on Annex 1 hereto, and that the aggregate amount
thereof does not exceed $5,000,000.

 

4.             EFFECTIVE DATE.

 

This Fifth Amendment shall
become effective on the date (the “Effective Date”)
upon which the following conditions are satisfied:

 

4.1.          Consent of Noteholders to Fifth
Amendment. Execution by the Noteholders of at least a majority of the
aggregate principal amount of the Notes outstanding and receipt by the
Noteholders of a counterpart of this Fifth Amendment duly executed by the
Company.

 

4.2.          Expenses. The Company shall
have paid all fees and expenses of special counsel to the Noteholders
contemplated by Section 5.6.

 

4.3.          Credit Agreement. The Required
Banks (as defined in the Credit Agreement) and the Company shall have entered
into an agreement consistent herewith and otherwise in form and substance
satisfactory to the Noteholders, and the Noteholders shall have received an
executed copy of such agreement.

 

4.4.          Pledge of Seller Notes. The
Company shall have pledged and delivered the Seller Notes (other than the Paid
in Full Canada Note) to the Collateral Agent for the benefit of the Benefited
Parties (as defined in the Security Agreement) together with bond powers
executed in blank or such other instrument of transfers acceptable to the
Collateral Agent, and the Noteholders shall have received evidence thereof.

 

5.             MISCELLANEOUS.

 

5.1.          Ratification. Except as amended
hereby, the Existing Note Agreement, including the representations and
warranties contained therein, shall remain in full force and effect and is
ratified, approved and confirmed in all respects as of the date hereof.

 

5.2.          Effect of Fifth Amendment. Except
as expressly provided herein, (a) no terms or provisions of the Note Agreement
or any other agreement are waived, modified or changed by this Fifth Amendment,
and (b) the terms of this Fifth Amendment shall not operate as a waiver or
amendment by the Noteholders of, or otherwise prejudice the Noteholders’
rights, remedies or

 

 

3

 

powers under, the Note
Agreement or under any applicable law, and all of such rights, remedies and
powers are hereby expressly reserved.

 

5.3.          Binding Effect. This Fifth
Amendment shall be binding upon and inure to the benefit of the respective
successors and assigns of the parties hereto.

 

5.4.          Governing Law. This Fifth
Amendment shall be governed by and construed in accordance with Illinois law.

 

5.5.          Counterparts. This Fifth
Amendment may be executed in any number of counterparts, each executed
counterpart constituting an original, but altogether only one instrument.

 

5.6.          Expenses. Without limiting the
provisions of Section 15.1 of the Note Agreement, the Company agrees to pay the
reasonable costs and expenses of the holders of Notes (including reasonable
attorneys’ fees and charges) in connection with the preparation, execution and
delivery of this Fifth Amendment.

 

5.7.          Seller Notes as Collateral.   The Company hereby acknowledges and agrees
that the Seller Notes constitute “securities” under Section 2 of the Pledge
Agreement and are included in the definition of “Collateral” therein.

[Remainder of page intentionally
left blank. Next page is signature page.]

 

 

4

 

IN
WITNESS WHEREOF, the
Company and the Noteholders have caused this Fifth Amendment to be executed and
delivered by their respective officer or officers thereunto duly authorized.

 

 

 

	
  TETRA
  TECH, INC.

  
	
   

  
	
   

  
	
   

  
	
  By:

  	
  /s/ David W. King

  	
   

  
	
   

  	
  Name: David W. King

  	
   

  
	
   

  	
  Title: Chief Financial
  Officer and Treasurer

  	
   

  
	
   

  	
   

  	
   

  

 

 

S-1

 

NOTEHOLDERS:

 

The foregoing is agreed to as of the date thereof.

 

MASSMUTUAL ASIA LIMITED

 

By:          Babson Capital Management LLC as 

Investment Adviser

 

 

	
  By:

  	
  /s/ Elisabeth A. Perenick

  	
   

  
	
  Name: Elisabeth A. Perenick

  	
   

  
	
  Title: Managing Director

  	
   

  

 

 

MASSACHUSETTS MUTUAL LIFE
INSURANCE COMPANY

 

By:          Babson Capital Management LLC as 

Investment Adviser

 

 

 

	
  By:

  	
  /s/ Elisabeth A. Perenick

  	
   

  
	
  Name: Elisabeth A. Perenick

  	
   

  
	
  Title: Managing Director

  	
   

  

 

 

 

S-2

 

C.M. LIFE INSURANCE COMPANY

 

By:          Babson Capital Management LLC as Investment Sub-Adviser

 

 

 

	
  By:

  	
  /s/ Elisabeth A. Perenick

  	
   

  
	
  Name: Elisabeth A. Perenick

  	
   

  
	
  Title: Managing Director

  	
   

  

 

 

 

S-3

 

PRUDENTIAL RETIREMENT CEDED
BUSINESS TRUST

 

By:          Prudential Investment Management, Inc., as Investment Manager

 

	
  By:

  	
  /s/ Matt R. Douglass

  	
   

  
	
   

  	
  Name: Matt R. Douglass

  	
   

  
	
   

  	
  Title: Vice President

  	
   

  

 

 

UNITED OF OMAHA INSURANCE COMPANY

 

 

 

	
  By:

  	
  /s/ Curtis R. Caldwell

  	
   

  
	
  Name: Curtis R. Caldwell

  	
   

  
	
  Title: Vice President

  	
   

  

 

 

MUTUAL OF OMAHA LIFE INSURANCE
COMPANY

 

 

 

	
  By:

  	
  /s/ Curtis R. Caldwell

  	
   

  
	
  Name: Curtis R. Caldwell

  	
   

  
	
  Title: Vice President

  	
   

  

 

 

 

S-4

 

HARTFORD LIFE INSURANCE COMPANY

 

By: Hartford Investment Services,
Inc., its Agent and 

Attorney-in-Fact

 

 

 

	
  By:

  	
  /s/ Daniel Leimbach

  	
   

  
	
  Name: Daniel Leimbach

  	
   

  
	
  Title: Senior Vice President

  	
   

  

 

 

NATIONWIDE LIFE INSURANCE COMPANY

 

 

 

	
  By:

  	
  /s/ Joseph P. Young

  	
   

  
	
  Name: Joseph P. Young

  	
   

  
	
  Title: Authorized Signatory

  	
   

  

 

 

NATIONWIDE LIFE AND ANNUITY
INSURANCE COMPANY

 

 

 

	
  By:

  	
  /s/ Joseph P. Young

  	
   

  
	
  Name: Joseph P. Young

  	
   

  
	
  Title: Authorized Signatory

  	
   

  

 

 

 

S-5

 

NATIONWIDE LIFE INSURANCE COMPANY
OF 

AMERICA (formerly Provident Mutual Life Insurance Company)

 

 

 

	
  By:

  	
  /s/ Joseph P. Young

  	
   

  
	
  Name: Joseph P. Young

  	
   

  
	
  Title:  Authorized Signatory

  	
   

  

 

 

SECURITY FINANCIAL LIFE INSURANCE
CO.

 

 

 

	
  By:

  	
  /s/ Kevin W. Hammond

  	
   

  
	
  Name: Kevin W. Hammond

  	
   

  
	
  Title: Senior Director—Investments

  	
   

  

 

 

THE CANADA LIFE ASSURANCE
COMPANY, as beneficial 

owner

 

 

 

	
  By:

  	
  /s/ Tad Anderson

  	
   

  
	
  Name: Tad Anderson

  	
   

  
	
  Title: 

  	
  Ass't. Vice President, Investments,

  U.S. Operations

  	
   

  
				

 

 

 

	
  By:

  	
  /s/ J.G. Lowery

  	
   

  
	
  Name: J.G. Lowery

  	
   

  
	
  Title: 

  	
  Ass't. Vice President, Investments,

  U.S. Operations

  	
   

  
				

 

 

 

S-6

 

GREAT-WEST LIFE & ANNUITY
INSURANCE 

COMPANY, as beneficial owner

 

 

 

	
  By:

  	
  /s/ Tad Anderson

  	
   

  
	
  Name: Tad Anderson

  	
   

  
	
  Title: 

  	
  Ass't. Vice President, Investments

  	
   

  
				

 

 

	
  By:

  	
  /s/ B.G. Masters

  	
   

  
	
  Name: B.G. Masters

  	
   

  
	
  Title: Ass't. Vice President, Investments

  	
   

  

 

FIRST GREAT-WEST LIFE &
ANNUITY INSURANCE 

COMPANY, as beneficial owner

 

 

 

	
  By:

  	
  /s/ Tad Anderson

  	
   

  
	
  Name: Tad Anderson

  	
   

  
	
  Title: 

  	
  Ass't. Vice President, Investments

  	
   

  
				

 

 

	
  By:

  	
  /s/ B.G. Masters

  	
   

  
	
  Name: B.G. Masters

  	
   

  
	
  Title: Ass't. Vice President, Investments

  	
   

  

 

THRIVENT FINANCIAL FOR LUTHERANS (successor by 

merger to Lutheran Brotherhood)

 

 

	
  By:

  	
  /s/ Mark O. Swenson

  	
   

  
	
  Name: Mark O. Swenson

  	
   

  
	
  Title: Vice President

  	
   

  

 

 

MODERN WOODMEN OF AMERICA

 

 

	
  By:

  	
   

  	
   

  
	
  Name:

  	
   

  
	
  Title:

  	
   

  

 

 

 

S-7

 

CONFIRMATION

Each of the undersigned
acknowledges receipt of the foregoing Fifth Amendment and confirms the
continuing validity and enforceability against such undersigned of each of the
Note Agreement, the Notes, the Subsidiary Guaranty, the Pledge Agreement and
the Security Agreement, in each case to the extent such undersigned is a party
thereto.

 

TETRA TECH, INC.

 

 

 

	
  By:

  	
  /s/ David W. King

  	
   

  
	
  Name: David W. King

  	
   

  
	
  Title: Chief Financial Officer and Treasurer

  	
   

  

 

ADVANCED MANAGEMENT TECHNOLOGY,
INC.

ARDAMAN & ASSOCIATES, INC.

COSENTINI ASSOCIATES, INC.

ENGINEERING MANAGEMENT CONCEPTS,
INC.

EVERGREEN UTILITY CONTRACTORS,
INC.

FHC, INC.

HARTMAN & ASSOCIATES, INC.

KCM, INC.

MFG, INC.

RIZZO ASSOCIATES, INC.

SCIENCES INTERNATIONAL, INC.

TETRA TECH CONSTRUCTION SERVICES,
INC.

TETRA TECH CONSULTING &
REMEDIATION, INC.

TETRA TECH EM INC.

TETRA TECH NUS, INC.

TETRA TECH RMC, INC.

THE THOMAS GROUP OF COMPANIES,
INC.

WHALEN & COMPANY, INC.

WESTERN UTILITY CONTRACTORS, INC.

 

 

 

	
  By:

  	
  /s/ David W. King

  	
   

  
	
  Name: David W. King

  	
   

  
	
  Title: Treasurer

  	
   

  

 

 

 

S-8

 

GEOTRANS, INC.

SCM CONSULTANTS, INC.

TETRA TECH EC, INC.

 

 

 

	
  By:

  	
  /s/ David W. King

  	
   

  
	
  Name: David W. King

  	
   

  
	
  Title:  Assistant Treasurer

  	
   

  

 

 

 

S-9

 

SCHEDULE
I

 

NOTEHOLDERS

 

Series A Noteholders

 

Massachusetts
Mutual Life Insurance Company

C.M. Life Insurance Company

MassMutual Asia Limited

 

Prudential Retirement Business Ceded Trust

 

United of Omaha Insurance Company

Mutual of Omaha Insurance Company

 

Hartford Life Insurance Company

 

Nationwide Life Insurance Company

Nationwide Life and Annuity Insurance Company

Nationwide Life Insurance Company of America
(formerly Provident Mutual Life Insurance Company)

 

Security Financial Life Insurance Co.

 

Series B Noteholders

 

The Canada Life Assurance Company

Great-West Life & Annuity Insurance
Company

First Great-West Life & Annuity Insurance
Company

 

Thrivent Financial for Lutherans (successor
by merger to Lutheran Brotherhood)

 

Modern Woodmen of America

 

 

 

SCHEDULE 10.13

 

LOANS

 

	
  Borrower

  	
   

  	
  Dr. Shawn Ziglari

  	
   

  	
  The Breakwater Companies,
  LLC

  	
   

  	
  Tetra Tech Canada Ltd.

  	
   

  	
  Tetra Tech Canada Ltd.

  
	
  Principal
  Amount

  	
   

  	
  $1,840,000

  	
   

  	
  $13,350,000

  	
   

  	
  C$1,170,000

  (US$1,000,000)

  	
   

  	
  C$4,620,000

  (US$3,960,000)

  
	
  Note Date

  	
   

  	
  10/1/05

  	
   

  	
  11/1/05

  	
   

  	
  12/1/05

  	
   

  	
  12/1/05

  
	
  Term

  	
   

  	
  2 years

  	
   

  	
  4 years

  	
   

  	
  60 days

  	
   

  	
  2 years

  
	
  Payment
  Schedule

  	
   

  	
  Quarterly

  	
   

  	
  Annually

  	
   

  	
  60 days

  	
   

  	
  Annually

  
	
  Balance
  due as of

  March 31, 2006

  	
   

  	
  $930,000

  	
   

  	
  $13,350,000

  	
   

  	
  $—

  	
   

  	
  C$4,620,000 (US$3,960,000)

  

 

 

 

ANNEX I

 

OTHER OUTSTANDING LOANS

 

 

	
  Borrower

  	
   

  	
  Sullivan International
  Group, Inc.

  
	
  Principal
  Amount

  	
   

  	
  $2,500,000.00

  
	
  Note Date

  	
   

  	
  1/31/06

  
	
  Term

  	
   

  	
  6 months

  
	
  Payment
  Schedule

  	
   

  	
  Quarterly

  
	
  Balance
  Due as of March 31, 2006

  	
   

  	
  $1,100,000.00

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00103-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00103-of-00352.parquet"}]]