Department of the Interior, U.S. Geological Survey, 345 Middlefield Road,Mail Stop 285, Menlo Park, CA 94025-3591

C -- DOQS AND ASSOCIATED DATA FOR CENTRAL AMERICA SOL 00WRSS0003 DUE 050200 POC Sonya Baird, Contracting Officer, (650)329-4168 This modification is issued to extend the date for receipt of SF254s and SF255s to May 2, 2000. Initial synopsis posted in the CBD on March 10, 2000 with a subsequent correction on April 19, 2000. Posted 04/28/00 (W-SN449576). (0119)

Loren Data Corp. http://www.ld.com (SYN# 0015 20000502\C-0003.SOL)