EXHIBIT 10.6

| 1.   | Section      4.6(a) of the Plan is amended in its entirety to read as      follows: |
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|   | (a) | Notwithstanding      any other provision of this Plan to the contrary, the total annual amount      of a Participant’s Retirement Income derived from Employer contributions      under this Plan and under all other defined benefit plans of an Employer      shall not exceed the Maximum Permissible Benefit pursuant to Section      415(b)(1) of the Code.  Benefit increases resulting from the      increase in the Defined Benefit Dollar Limitation shall be provided to all      Employees participating in the Plan who have one Hour of Service on or      after December 31, 2001.  For purposes of determining the      Maximum Permissible Benefit, the “Defined Benefit Dollar Limitation” is      $160,000, as adjusted, effective January 1 of each year, under Code      Section 415(d) in such manner as the Secretary shall prescribe, and      payable in the form of a straight life annuity.  This limitation      as adjusted will apply to limitation years ending with or within the      calendar year for which the adjustment applies.  For purposes of      determining the Maximum Permissible Benefit, the “Defined Benefit      Compensation Limitation” is 100% of the Participant’s average compensation      for the three consecutive years of service, determined in accordance with      Treasury Regulation Section 1.415(b)-1(a)(5), in which he received the      highest aggregate compensation from the Employer, adjusted as provided      below.  For purposes of applying the limitations of Code Section      415, compensation shall be determined in accordance with the provisions of      Treasury Regulation Sections 1.415(c)-2(b) and (c), including compensation      described in Treasury Regulation Sections 1.415(c)-2(e)(3)(i), (ii) and      (iii) and (e)(4) (to the extent any such compensation is paid by the      Employer).  For purposes of this Section 4.6, and applying the      limitations of Code Section 415, compensation shall include any amount      which is contributed or deferred by the Employer on behalf of and at the      election of a Participant and which is not includible in gross income by      reason of Code Section 125, 402(g)(3) or 457 or, effective January 1,      2001, Code Section 132(f)(4). |
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|   | EG&G Technical Services,      Inc. |                                  |
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|   | By:                                    | /s/ H.      Thomas Hicks         |   |
|   |                                   | TITLE:  Vice      President |   |
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