U.S. Army Engineer District, Chicago, Corps of Engineers, 111 North Canal Street, Chicago, Illinois 60606-7206

C -- INDEFINITE DELIVERY ARCHITECT ENGINEER CONTRACT FOR ENVIRONMENTAL ENGINEERING SERVICES FOR THE CHICAGO DISTRICT CORPS OF ENGINEERS POC Point of Contacts: Katherine McClendon (312)353-6400 X1701 or Tim Kelleher (312)353-6400 X3012 The existing Contract No. DACW23-96-D-0011 awarded to Environmental Science & Engineering, Inc. is hereby modified to increase the Scope of Work to include work areas in Los Angeles, CA. This modification will be awarded on a sole sources basis to Environmental Science & Engineering, Inc. (0098)

Loren Data Corp. http://www.ld.com (SYN# 0012 19980410\C-0002.SOL)