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<p style="font-weight:bold;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">As filed with the Securities and Exchange
Commission on May&nbsp;1, 2009</font></b></p>

<p style="font-weight:bold;margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">Registration No.&nbsp;333-85558</font></b></p>

<p style="font-weight:bold;margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:normal;">&nbsp;</font></b></p>

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<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="1" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>

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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES
AND EXCHANGE COMMISSION</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington,
D.C. 20549</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

<div align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">

<hr size="1" width="25%" noshade color="black" align="center">

</font></b></div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">POST-EFFECTIVE
AMENDMENT NO. 2 TO</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;S-8</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">REGISTRATION
STATEMENT</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">UNDER</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">THE
SECURITIES ACT OF 1933</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

<div align="center" style="margin:0in 0in .0001pt;text-align:center;"><hr size="1" width="25%" noshade color="black" align="center"></div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">TETRA TECH, INC.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact name of registrant as
specified in its charter)</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div align="center">

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Delaware</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">95-4148514</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or other jurisdiction
  of<br>
  incorporation or organization)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(IRS Employer
  Identification&nbsp;No.)</font></p>
  </td>
 </tr>
</table>

</div>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">3475 E. Foothill Boulevard,
Pasadena, CA 9ll07</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(626) 351-4664</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address, including zip code of
principal executive offices)</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">TETRA TECH, INC.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">2005 EQUITY INCENTIVE PLAN</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Full title of the plan)</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Janis B. Salin</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Vice President and General
Counsel</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">TETRA TECH, INC.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">3475 E. Foothill Boulevard,
Pasadena, CA 91107</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(626) 351-4664</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Name, address, including zip code, and
telephone number, including area code, of agent for service)</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">CALCULATION OF REGISTRATION FEE</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div align="center">

<table border="1" cellspacing="0" cellpadding="0" width="100%" style="border:none;border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="18%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:18.38%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Title of each class of<br>
  securities to be<br>
  registered</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:2.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="18%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:18.4%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Amount<br>
  to be<br>
  Registered(1)(2)</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:2.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="18%" colspan="2" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:18.4%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Proposed<br>
  Maximum<br>
  Offering Price<br>
  Per Share(3)</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:2.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="18%" colspan="2" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:18.4%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Proposed<br>
  Maximum<br>
  Aggregate<br>
  Offering Price(3)</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:2.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="18%" colspan="2" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:18.4%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Amount of<br>
  Registration<br>
  Fee</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="18%" valign="top" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:18.38%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Common Stock,<br>
  $.01 par value</font></p>
  </td>
  <td width="2%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:18.4%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2,500,000<br>
  shares</font></p>
  </td>
  <td width="2%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="17%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:17.1%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">24.07</font></p>
  </td>
  <td width="2%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="17%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:17.1%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">60,175,000</font></p>
  </td>
  <td width="2%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="17%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in .7pt 0in .7pt;width:17.1%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3,357.77</font></p>
  </td>
 </tr>
 <tr height="0">
  <td width="138" style="border:none;"></td>
  <td width="15" style="border:none;"></td>
  <td width="138" style="border:none;"></td>
  <td width="15" style="border:none;"></td>
  <td width="10" style="border:none;"></td>
  <td width="128" style="border:none;"></td>
  <td width="15" style="border:none;"></td>
  <td width="10" style="border:none;"></td>
  <td width="128" style="border:none;"></td>
  <td width="15" style="border:none;"></td>
  <td width="10" style="border:none;"></td>
  <td width="128" style="border:none;"></td>
 </tr>
</table>

</div>

<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(1)</font><font size="1" style="font-size:8.5pt;">&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Together with an
indeterminate number of additional shares that may be necessary to adjust the
number of shares reserved for issuance pursuant to the 2005 Equity Incentive
Plan (the &#147;2005 Plan&#148;) as a result of stock splits, stock dividends or similar
adjustments of the outstanding common stock.</font></p>

<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)</font><font size="1" style="font-size:8.5pt;">&#160;&#160; </font><font size="2" style="font-size:10.0pt;">The securities
registered hereby represent an addition to the 7,000,000 shares of common stock
issuable under the Tetra Tech,&nbsp;Inc. 2005 Equity Incentive Plan (which
amended and restated the Tetra Tech,&nbsp;Inc. 2002 Stock Option Plan), the
offer and sale of which were previously registered pursuant to this
Registration Statement.</font></p>

<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(3)</font><font size="1" style="font-size:8.5pt;">&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Estimated solely for the
purpose of calculating the registration fee pursuant to Rule&nbsp;457(h)&nbsp;under
the Securities Act of 1933, as amended, based upon the last sales price for the
registrant&#146;s common stock as reported on the NASDAQ Global Select Market on April&nbsp;29,
2009.</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div style="border-bottom:solid windowtext 3.0pt;border-left:none;border-right:none;border-top:solid windowtext 1.0pt;padding:1.0pt 0in 1.0pt 0in;">

<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="1" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>

</div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

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<div style="font-family:Times New Roman;">

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">EXPLANATORY
NOTE</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On
April&nbsp;4, 2002, Tetra Tech,&nbsp;Inc., a Delaware corporation (the
&#147;Company&#148;), filed a Registration Statement (</font><font size="2" style="font-size:10.0pt;">333-85558) (the &#147;Registration Statement&#148;) in
accordance with the requirements of Form&nbsp;S-8 under the Securities Act of
1933, as amended, to register 4,000,000 shares of its common stock which had
been authorized and reserved for issuance under the Tetra Tech,&nbsp;Inc. 2002
Stock Option Plan.&#160; The Tetra Tech,&nbsp;Inc.
2005 Equity Incentive Plan amends and restates the 2002 Stock Option Plan.&#160; On August&nbsp;7, 2007, the Company filed
Post-Effective Amendment No.&nbsp;1 to the Registration Statement to register
3,000,000 additional shares of common stock to be included in the 2005 Equity
Incentive Plan. This Post-Effective Amendment No.&nbsp;2 will register an
additional 2,500,000 shares of common stock to be included in the 2005 Equity
Incentive Plan.</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">PART&nbsp;II</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</font></b></p>

<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 8.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Exhibits.</font></b></p>

<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.1</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2005 Equity Incentive
  Plan (incorporated herein by reference to Annex B to the Company&#146;s Proxy
  Statement for the 2009 Annual Meeting of Stockholders).</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.2</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Form&nbsp;of Stock
  Option Agreement to be used by the Company in connection with the 2005 Equity
  Incentive Plan (incorporated herein by reference to Exhibit&nbsp;10.19 to the
  Company&#146;s Annual Report on Form&nbsp;10-K for the fiscal year ended
  October&nbsp;2, 2005).</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.3</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Form&nbsp;of Restricted
  Stock Agreement to be used by the Company in connection with the 2005 Equity
  Incentive Plan (incorporated herein by reference to Exhibit&nbsp;10.20 to the
  Company&#146;s Annual Report on Form&nbsp;10-K for the fiscal year ended
  October&nbsp;2, 2005).</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.4</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Form&nbsp;of Stock
  Appreciation Rights Agreement to be used by the Company in connection with
  the 2005 Equity Incentive Plan (incorporated herein by reference to
  Exhibit&nbsp;10.21 to the Company&#146;s Annual Report on Form&nbsp;10-K for the
  fiscal year ended October&nbsp;2, 2005).</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.5</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Form&nbsp;of Restricted
  Stock Unit Agreement to be used by the Company in connection with the 2005
  Equity Incentive Plan (incorporated herein by reference to Exhibit&nbsp;10.22
  to the Company&#146;s Annual Report on Form&nbsp;10-K for the fiscal year ended
  October&nbsp;2, 2005).</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.1</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Opinion of Janis B.
  Salin, Vice President and General Counsel of the Registrant.*</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.1</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of Independent
  Registered Public Accounting Firm, PricewaterhouseCoopers LLP*</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.2</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="93%" valign="top" style="padding:0in 0in 0in 0in;width:93.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of Counsel
  (included in Exhibit&nbsp;5.1).*</font></p>
  </td>
 </tr>
</table>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div style="margin:0in 0in .0001pt;"><hr size="1" width="25%" noshade color="black" align="left"></div>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">*Filed herewith</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">II-2</font></p>

<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='II-2',FILE='C:\JMS\c900235\09-12284-1\task3529398\12284-1-ba.htm',USER='c900235',CD='May  1 18:12 2009' -->


<br clear="all" style="page-break-before:always;">


<div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:35.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the
requirements of the Securities Act of 1933, the registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for
filing on Form&nbsp;S-8 and has duly caused this Post-Effective Amendment No.2
to Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Pasadena, State of California, on
this 1st day of May, 2009.</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;text-indent:35.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">TETRA TECH, INC.</font></p>
  </td>
 </tr>
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>
  </td>
  <td width="46%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:46.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ DAN L.
  BATRACK</font></p>
  </td>
 </tr>
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="46%" valign="top" style="padding:0in 0in 0in 0in;width:46.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dan L. Batrack</font></p>
  </td>
 </tr>
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="46%" valign="top" style="padding:0in 0in 0in 0in;width:46.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chairman and
  Chief Executive Officer</font></p>
  </td>
 </tr>
</table>

<p style="margin:0in 0in .0001pt 272.15pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt 272.15pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the
requirements of the Securities Act of 1933, this Registration Statement has
been signed by the following persons in the capacities and on the dates
indicated.</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="34%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Signature</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="49%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:49.12%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Title</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="12%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Date</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:34.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:12.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ DAN L. BATRACK</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chairman of the
  Board, Chief Executive Officer and Director <br>
  (Principal Executive Officer)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">May&nbsp;1, 2009</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dan L. Batrack</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="padding:0in 0in 0in 0in;width:34.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ DAVID W. KING</font><font size="2" style="font-size:10.0pt;">  </font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Executive Vice
  President, Chief Financial Officer and Treasurer<br>
  (Principal Financial and Accounting Officer)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">May&nbsp;1, 2009</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">David W. King</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="padding:0in 0in 0in 0in;width:34.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ ALBERT W. SMITH</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">May&nbsp;1, 2009</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Albert E. Smith</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="padding:0in 0in 0in 0in;width:34.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ J. CHRISTOPHER LEWIS</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">May&nbsp;1, 2009</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">J. Christopher Lewis</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="padding:0in 0in 0in 0in;width:34.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ PATRICK C. HADEN</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">May&nbsp;1, 2009</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Patrick C. Haden</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="padding:0in 0in 0in 0in;width:34.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ HUGH M. GRANT</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">May&nbsp;1, 2009</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Hugh M. Grant</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="padding:0in 0in 0in 0in;width:34.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ RICHARD H. TRULY</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">May&nbsp;1, 2009</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Richard H. Truly</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="padding:0in 0in 0in 0in;width:34.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ J. KENNETH THOMPSON</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="bottom" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">May&nbsp;1, 2009</font></p>
  </td>
 </tr>
 <tr>
  <td width="34%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:34.58%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">J. Kenneth Thompson</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.08%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.12%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="12%" valign="top" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">II-3</font></p>

<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='II-3',FILE='C:\JMS\c900235\09-12284-1\task3529398\12284-1-ba.htm',USER='c900235',CD='May  1 18:12 2009' -->


<br clear="all" style="page-break-before:always;">


<div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">EXHIBIT INDEX</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.1</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2005 Equity Incentive
  Plan (incorporated herein by reference to Annex B to the Company&#146;s Proxy
  Statement for the 2009 Annual Meeting of Stockholders).</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.2</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Form&nbsp;of Stock
  Option Agreement to be used by the Company in connection with the 2005 Equity
  Incentive Plan (incorporated herein by reference to Exhibit&nbsp;10.19 to the
  Company&#146;s Annual Report on Form&nbsp;10-K for the fiscal year ended
  October&nbsp;2, 2005).</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.3</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Form&nbsp;of Restricted
  Stock Agreement to be used by the Company in connection with the 2005 Equity
  Incentive Plan (incorporated herein by reference to Exhibit&nbsp;10.20 to the
  Company&#146;s Annual Report on Form&nbsp;10-K for the fiscal year ended
  October&nbsp;2, 2005).</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.4</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Form&nbsp;of Stock
  Appreciation Rights Agreement to be used by the Company in connection with
  the 2005 Equity Incentive Plan (incorporated herein by reference to
  Exhibit&nbsp;10.21 to the Company&#146;s Annual Report on Form&nbsp;10-K for the
  fiscal year ended October&nbsp;2, 2005).</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.5</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Form&nbsp;of Restricted
  Stock Unit Agreement to be used by the Company in connection with the 2005
  Equity Incentive Plan (incorporated herein by reference to Exhibit&nbsp;10.22
  to the Company&#146;s Annual Report on Form&nbsp;10-K for the fiscal year ended
  October&nbsp;2, 2005).</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.1</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Opinion of Janis B.
  Salin, Vice President and General Counsel of the Registrant.*</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.1</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of Independent
  Registered Public Accounting Firm, PricewaterhouseCoopers LLP*</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.2</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.28%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="94%" valign="top" style="padding:0in 0in 0in 0in;width:94.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of Counsel
  (included in Exhibit&nbsp;5.1).*</font></p>
  </td>
 </tr>
</table>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">*Filed herewith</font></p>

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{"company-data": {"conformed-name": "TETRA TECH INC", "cik": "0000831641", "assigned-sic": "8711", "irs-number": "954148514", "state-of-incorporation": "DE", "fiscal-year-end": "0928"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-158932", "film-number": "09787883"}, "business-address": {"street1": "3475 EAST FOOTHILL BOULEVARD", "city": "PASADENA", "state": "CA", "zip": "91107", "phone": "6263514664"}, "mail-address": {"street1": "3475 EAST FOOTHILL BOULEVARD", "city": "PASADENA", "state": "CA", "zip": "91107"}}
As filed with the Securities and Exchange
Commission on May 1, 2009
Registration No. 333-85558
SECURITIES
AND EXCHANGE COMMISSION
Washington,
D.C. 20549
POST-EFFECTIVE
AMENDMENT NO. 2 TO
FORM S-8
REGISTRATION
STATEMENT
UNDER
THE
SECURITIES ACT OF 1933
TETRA TECH, INC.
(Exact name of registrant as
specified in its charter)
Delaware
95-4148514
(State or other jurisdiction
  of
incorporation or organization)
(IRS Employer
  Identification No.)
3475 E. Foothill Boulevard,
Pasadena, CA 9ll07
(626) 351-4664
(Address, including zip code of
principal executive offices)
TETRA TECH, INC.
2005 EQUITY INCENTIVE PLAN
(Full title of the plan)
Janis B. Salin
Vice President and General
Counsel
TETRA TECH, INC.
3475 E. Foothill Boulevard,
Pasadena, CA 91107
(626) 351-4664
(Name, address, including zip code, and
telephone number, including area code, of agent for service)
CALCULATION OF REGISTRATION FEE
Title of each class of
securities to be
registered
Amount
to be
Registered(1)(2)
Proposed
Maximum
Offering Price
Per Share(3)
Proposed
Maximum
Aggregate
Offering Price(3)
Amount of
Registration
Fee
Common Stock,
$.01 par value
2,500,000
shares
$
24.07
$
60,175,000
$
3,357.77
(1)
Together with an
indeterminate number of additional shares that may be necessary to adjust the
number of shares reserved for issuance pursuant to the 2005 Equity Incentive
Plan (the "2005 Plan") as a result of stock splits, stock dividends or similar
adjustments of the outstanding common stock.
(2)
The securities
registered hereby represent an addition to the 7,000,000 shares of common stock
issuable under the Tetra Tech, Inc. 2005 Equity Incentive Plan (which
amended and restated the Tetra Tech, Inc. 2002 Stock Option Plan), the
offer and sale of which were previously registered pursuant to this
Registration Statement.
(3)
Estimated solely for the
purpose of calculating the registration fee pursuant to Rule 457(h) under
the Securities Act of 1933, as amended, based upon the last sales price for the
registrant's common stock as reported on the NASDAQ Global Select Market on April 29,
2009.
EXPLANATORY
NOTE
On
April 4, 2002, Tetra Tech, Inc., a Delaware corporation (the
"Company"), filed a Registration Statement (
333-85558) (the "Registration Statement") in
accordance with the requirements of Form S-8 under the Securities Act of
1933, as amended, to register 4,000,000 shares of its common stock which had
been authorized and reserved for issuance under the Tetra Tech, Inc. 2002
Stock Option Plan.  The Tetra Tech, Inc.
2005 Equity Incentive Plan amends and restates the 2002 Stock Option Plan.  On August 7, 2007, the Company filed
Post-Effective Amendment No. 1 to the Registration Statement to register
3,000,000 additional shares of common stock to be included in the 2005 Equity
Incentive Plan. This Post-Effective Amendment No. 2 will register an
additional 2,500,000 shares of common stock to be included in the 2005 Equity
Incentive Plan.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 8.
Exhibits.
4.1
2005 Equity Incentive
  Plan (incorporated herein by reference to Annex B to the Company's Proxy
  Statement for the 2009 Annual Meeting of Stockholders).
4.2
Form of Stock
  Option Agreement to be used by the Company in connection with the 2005 Equity
  Incentive Plan (incorporated herein by reference to Exhibit 10.19 to the
  Company's Annual Report on Form 10-K for the fiscal year ended
  October 2, 2005).
4.3
Form of Restricted
  Stock Agreement to be used by the Company in connection with the 2005 Equity
  Incentive Plan (incorporated herein by reference to Exhibit 10.20 to the
  Company's Annual Report on Form 10-K for the fiscal year ended
  October 2, 2005).
4.4
Form of Stock
  Appreciation Rights Agreement to be used by the Company in connection with
  the 2005 Equity Incentive Plan (incorporated herein by reference to
  Exhibit 10.21 to the Company's Annual Report on Form 10-K for the
  fiscal year ended October 2, 2005).
4.5
Form of Restricted
  Stock Unit Agreement to be used by the Company in connection with the 2005
  Equity Incentive Plan (incorporated herein by reference to Exhibit 10.22
  to the Company's Annual Report on Form 10-K for the fiscal year ended
  October 2, 2005).
5.1
Opinion of Janis B.
  Salin, Vice President and General Counsel of the Registrant.*
23.1
Consent of Independent
  Registered Public Accounting Firm, PricewaterhouseCoopers LLP*
23.2
Consent of Counsel
  (included in Exhibit 5.1).*
*Filed herewith
II-2
SIGNATURES
Pursuant to the
requirements of the Securities Act of 1933, the registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for
filing on Form S-8 and has duly caused this Post-Effective Amendment No.2
to Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Pasadena, State of California, on
this 1st day of May, 2009.
TETRA TECH, INC.
By:
/s/ DAN L.
  BATRACK
Dan L. Batrack
Chairman and
  Chief Executive Officer
Pursuant to the
requirements of the Securities Act of 1933, this Registration Statement has
been signed by the following persons in the capacities and on the dates
indicated.
Signature
Title
Date
/s/ DAN L. BATRACK
Chairman of the
  Board, Chief Executive Officer and Director
(Principal Executive Officer)
May 1, 2009
Dan L. Batrack
/s/ DAVID W. KING
Executive Vice
  President, Chief Financial Officer and Treasurer
(Principal Financial and Accounting Officer)
May 1, 2009
David W. King
/s/ ALBERT W. SMITH
May 1, 2009
Albert E. Smith
Director
/s/ J. CHRISTOPHER LEWIS
Director
May 1, 2009
J. Christopher Lewis
/s/ PATRICK C. HADEN
Director
May 1, 2009
Patrick C. Haden
/s/ HUGH M. GRANT
Director
May 1, 2009
Hugh M. Grant
/s/ RICHARD H. TRULY
Director
May 1, 2009
Richard H. Truly
/s/ J. KENNETH THOMPSON
Director
May 1, 2009
J. Kenneth Thompson
II-3
EXHIBIT INDEX
4.1
2005 Equity Incentive
  Plan (incorporated herein by reference to Annex B to the Company's Proxy
  Statement for the 2009 Annual Meeting of Stockholders).
4.2
Form of Stock
  Option Agreement to be used by the Company in connection with the 2005 Equity
  Incentive Plan (incorporated herein by reference to Exhibit 10.19 to the
  Company's Annual Report on Form 10-K for the fiscal year ended
  October 2, 2005).
4.3
Form of Restricted
  Stock Agreement to be used by the Company in connection with the 2005 Equity
  Incentive Plan (incorporated herein by reference to Exhibit 10.20 to the
  Company's Annual Report on Form 10-K for the fiscal year ended
  October 2, 2005).
4.4
Form of Stock
  Appreciation Rights Agreement to be used by the Company in connection with
  the 2005 Equity Incentive Plan (incorporated herein by reference to
  Exhibit 10.21 to the Company's Annual Report on Form 10-K for the
  fiscal year ended October 2, 2005).
4.5
Form of Restricted
  Stock Unit Agreement to be used by the Company in connection with the 2005
  Equity Incentive Plan (incorporated herein by reference to Exhibit 10.22
  to the Company's Annual Report on Form 10-K for the fiscal year ended
  October 2, 2005).
5.1
Opinion of Janis B.
  Salin, Vice President and General Counsel of the Registrant.*
23.1
Consent of Independent
  Registered Public Accounting Firm, PricewaterhouseCoopers LLP*
23.2
Consent of Counsel
  (included in Exhibit 5.1).*
*Filed herewith
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