U.S. Army Corps of Engineers, Philadelphia Wanamaker Building, Room 643, 100 Penn Square East, Philadelphia, Pennsylvania 19107

C -- INDEFINITE DELIVERY CONTRACT FOR ENVIRONMENTAL AND HAZARDOUS/TOXIC SERVICES!! POC Contact Point, Mary Jane Jerrett (215) 656-6607!! CNT DACA61-98-D-0011!! AMT NTE $3,000,000.00!! LINE N/A!! DTD 091798 TO Tetra Tech NUS, Incorporated, 600 Clark Avenue, Suite 3, King of Prussia, PA 19406!! Posted 09/17/98 (W-SN251334). (0260)

Loren Data Corp. http://www.ld.com (SYN# 0352 19980921\C-0002.AWD)