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USD ($)

USD ($) / shares
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   &lt;!-- Begin Block Tagged Note 10 - us-gaap:CommitmentsAndContingenciesDisclosureTextBlock--&gt;
   &lt;div style="margin-left: 0%"&gt;
   &lt;table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent; text-align: left"&gt;
   &lt;tr&gt;
       &lt;td width="5%"&gt;&lt;/td&gt;
       &lt;td width="95%"&gt;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr valign="top"&gt;
       &lt;td&gt;
       &lt;b&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;10.&amp;#160;&amp;#160;&lt;/font&gt;&lt;/b&gt;
   &lt;/td&gt;
       &lt;td&gt;
       &lt;b&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;COMMITMENTS
       AND CONTINGENCIES&lt;/font&gt;&lt;/b&gt;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;/table&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       &lt;i&gt;Leases&lt;/i&gt;&amp;#160;&amp;#8212; Certain facilities and equipment,
       including project-related field equipment, are rented under
       operating leases that expire at various dates through 2022. Rent
       expense for operating leases totaled $60,529, $69,180, and
       $69,233 in 2010, 2009 and 2008, respectively. Future minimum
       payments under non-cancelable operating leases having initial
       terms of one year or more are as follows:
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;table border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent; text-align: left"&gt;
   &lt;!-- Table Width Row BEGIN --&gt;
   &lt;tr style="font-size: 1pt" valign="bottom"&gt;
       &lt;td width="90%"&gt;&amp;#160;&lt;/td&gt;&lt;!-- colindex=01 type=maindata --&gt;
       &lt;td width="2%"&gt;&amp;#160;&lt;/td&gt;&lt;!-- colindex=02 type=gutter --&gt;
       &lt;td width="1%" align="right"&gt;&amp;#160;&lt;/td&gt;&lt;!-- colindex=02 type=lead --&gt;
       &lt;td width="6%" align="right"&gt;&amp;#160;&lt;/td&gt;&lt;!-- colindex=02 type=body --&gt;
       &lt;td width="1%" align="left"&gt;&amp;#160;&lt;/td&gt;&lt;!-- colindex=02 type=hang1 --&gt;
   &lt;/tr&gt;
   &lt;!-- Table Width Row END --&gt;
   &lt;!-- TableOutputHead --&gt;
   &lt;tr style="font-size: 8pt" valign="bottom" align="center"&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom" style="border-bottom: 1px solid #000000"&gt;
       &lt;b&gt;Year&lt;/b&gt;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"&gt;
       &lt;b&gt;Amount&lt;/b&gt;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr style="line-height: 3pt; font-size: 1pt"&gt;
   &lt;td&gt;&amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;!-- TableOutputBody --&gt;
   &lt;tr valign="bottom" style="background: #cceeff"&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &lt;div style="text-indent: -10pt; margin-left: 10pt"&gt;
       2011
   &lt;/div&gt;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
       $
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       43,706
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr valign="bottom"&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &lt;div style="text-indent: -10pt; margin-left: 10pt"&gt;
       2012
   &lt;/div&gt;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       33,807
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr valign="bottom" style="background: #cceeff"&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &lt;div style="text-indent: -10pt; margin-left: 10pt"&gt;
       2013
   &lt;/div&gt;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       27,399
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr valign="bottom"&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &lt;div style="text-indent: -10pt; margin-left: 10pt"&gt;
       2014
   &lt;/div&gt;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       20,156
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr valign="bottom" style="background: #cceeff"&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &lt;div style="text-indent: -10pt; margin-left: 10pt"&gt;
       2015
   &lt;/div&gt;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       18,518
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr valign="bottom"&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &lt;div style="text-indent: -10pt; margin-left: 10pt"&gt;
       Thereafter
   &lt;/div&gt;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       71,706
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr valign="bottom" style="font-size: 1pt"&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td style="border-top: 1px solid #000000"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td style="border-top: 1px solid #000000"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr valign="bottom" style="background: #cceeff"&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &lt;div style="text-indent: -10pt; margin-left: 10pt"&gt;
       Total
   &lt;/div&gt;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
       $
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       215,292
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr valign="bottom" style="font-size: 1pt"&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td style="border-top: 3px double #000000"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td style="border-top: 3px double #000000"&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;/tr&gt;
   &lt;/table&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       In the normal course of business, we enter into lease agreements
       with cancellation provisions as well as agreements with initial
       terms of less than one year. The costs related to these leases
       have been reflected in rent expense but have been appropriately
       excluded from the future minimum payments presented above.
       Additionally, certain lease agreements contain escalation
       provisions based upon specific future inflation indices which
       could impact the future minimum payments presented above.
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       &lt;i&gt;Legal Proceedings&lt;/i&gt;&amp;#160;&amp;#8212; We have been and may from
       time to time be named as a defendant in legal actions claiming
       damages in connection with engineering and construction
       projects, technology licenses and other matters. These are
       typically claims that arise in the normal course of business,
       including employment-related claims and contractual disputes or
       claims for personal injury or property damage which occur in
       connection with services performed relating to project or
       construction sites. Contractual disputes normally involve claims
       relating to the timely completion of projects, performance of
       equipment or technologies, design or other engineering services
       or project construction services provided by us. Management does
       not currently believe that any of our pending contractual,
       employment-related personal injury or property damage claims and
       disputes will have a material effect on our future results of
       operations, financial position or cash flow.
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       &lt;i&gt;Asbestos Litigation&lt;/i&gt;&amp;#160;&amp;#8212; We are a defendant in
       lawsuits wherein plaintiffs allege exposure to asbestos due to
       work we may have performed at various locations. We have never
       been a manufacturer, distributor or supplier of asbestos
       products. Through December&amp;#160;31, 2010, we have been named a
       defendant in lawsuits alleging exposure to asbestos involving
       approximately 5,000 plaintiffs and, of those claims,
       approximately 1,400 claims were pending and 3,600 have been
       closed through dismissals or settlements. Through
       December&amp;#160;31, 2010, the claims alleging exposure to asbestos
       that have been resolved have been dismissed or settled for an
       average settlement amount of approximately one thousand dollars
       per claim. We review each case on its own merits and make
       accruals based upon the probability of loss and our estimates of
       the amount of liability and related expenses, if any. We do not
       currently believe that any unresolved asserted claims will have
       a material adverse effect on our future results of operations,
       financial position or cash flow, and, at December&amp;#160;31, 2010,
       we had accrued approximately $1,600 for liability and related
       expenses. With respect to unasserted asbestos claims, we cannot
       identify a population of potential claimants with sufficient
       certainty to determine the probability of a loss and to make a
       reasonable estimate of liability, if any. While we continue to
       pursue recovery for recognized and unrecognized contingent
       losses through insurance, indemnification arrangements or other
       sources, we are unable to quantify the amount, if any, that we
       may expect to recover because of the variability in coverage
       amounts, limitations and deductibles, or the viability of
       carriers, with respect to our insurance policies for the years
       in question.
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       &lt;i&gt;Environmental Matters&lt;/i&gt;&amp;#160;&amp;#8212; Our operations are
       subject to extensive and changing U.S.&amp;#160;federal, state and
       local laws and regulations, as well as the laws of other
       nations, that establish health and environmental quality
       standards.
   These standards, among others, relate to air and water
       pollutants and the management and disposal of hazardous
       substances and wastes. We are exposed to potential liability for
       personal injury or property damage caused by any release, spill,
       exposure or other accident involving such pollutants, substances
       or wastes.
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       In connection with the historical operation of our facilities,
       substances which currently are or might be considered hazardous
       were used or disposed of at some sites that will or may require
       us to make expenditures for remediation. In addition, we have
       agreed to indemnify parties from whom we have purchased or to
       whom we have sold facilities for certain environmental
       liabilities arising from acts occurring before the dates those
       facilities were transferred.
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       We believe that we are currently in compliance, in all material
       respects, with all environmental laws and regulations. We do not
       currently believe that any environmental matters will have a
       material adverse effect on our future results of operations,
       financial position or cash flow. We do not anticipate that we
       will incur material capital expenditures for environmental
       controls or for the investigation or remediation of
       environmental conditions during 2011 or 2012.
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       &lt;i&gt;Letters of Credit/Bank Guarantees/Surety
       Bonds&lt;/i&gt;&amp;#160;&amp;#8212; In the ordinary course of business, we may
       obtain surety bonds and letters of credit, which we provide to
       our customers to secure advance payment or our performance under
       our contracts, or in lieu of retention being withheld on our
       contracts. In the event of our non-performance under a contract
       and an advance being made by a bank pursuant to a draw on a
       letter of credit, the advance would become a borrowing under a
       credit facility and thus our direct obligation. Where a surety
       incurs such a loss, an indemnity agreement between the parties
       and us may require payment from our excess cash or a borrowing
       under our revolving credit facilities. When a contract is
       completed, the contingent obligation terminates and the bonds or
       letters of credit are returned. At December&amp;#160;31, 2010, we
       had provided $1,650,750 of surety bonds and letters of credit to
       support our contracting activities in the ordinary course of
       business. This amount fluctuates based upon the mix and level of
       contracting activity.
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       &lt;i&gt;Insurance&lt;/i&gt;&amp;#160;&amp;#8212; We have elected to retain portions
       of anticipated losses, if any, through the use of deductibles
       and self-insured retentions for our exposures related to
       third-party liability and workers&amp;#8217; compensation.
       Liabilities in excess of these amounts are the responsibilities
       of an insurance carrier. To the extent we are self-insured for
       these exposures, reserves (see Note&amp;#160;6)&amp;#160;have been
       provided based upon our best estimates with input from our legal
       and insurance advisors. Changes in assumptions, as well as
       changes in actual experience, could cause these estimates to
       change in the near term. We believe that the reasonably possible
       losses, if any, for these matters, to the extent not otherwise
       disclosed and net of recorded reserves, will not have a material
       adverse effect on our future results of operations, financial
       position or cash flow. At December&amp;#160;31, 2010, we had
       outstanding surety bonds and letters of credit of $33,793
       relating to our insurance program.
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       &lt;i&gt;Income Taxes&lt;/i&gt;&amp;#160;&amp;#8212; We provide income tax reserves
       in situations where we have and have not received tax
       assessments. Tax reserves are provided in those instances where
       we consider it more likely than not that additional taxes will
       be due in excess of amounts reflected in income tax returns
       filed worldwide. As a matter of standard policy, we continually
       review our exposure to additional income tax obligations and as
       further information is known or events occur, increases or
       decreases, as appropriate, may be recorded.
   &lt;/div&gt;
   &lt;/div&gt;
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
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