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C -- SUPPLEMENTAL SEISMIC/STRUCTURAL ENGINEERING SERVICES SOL GS-09P-99-KTC-0025 DUE 041999 POC Kevin Kearney, Contracting Officer/(415) 522-3178 or Bela Palfalvi, Sr. Engineer/(415) 522-3183 This notice modifies the original synopsis posted in CBDNet on Mar 1, 1999 and published in the Commerce Business Daily (CBD) on Mar 4, 1999. The geographical area of consideration is extended. The lead seismic/structural firm must have an active design office in the states of Washington, Oregon, Idaho, California, Nevada or Arizona. This office must have been active for at least 12 months prior to the closing date of this synopsis. A modification to the original synopsis was also posted in CBDNet on Mar 15, 1999 and published in the CBD on Mar 18, 1999 and is hereby changed as follows: The synopsis closing date is extended to 4:00 PM PDT, April 19, 1999. Two copies of the submission are required. Posted 03/22/99 (W-SN311068). (0081)

Loren Data Corp. http://www.ld.com (SYN# 0024 19990324\C-0006.SOL)