Tetra Tech EM Inc., 1593 Springhill Road, Vienna, VA 22182

A -- RESEARCH & DEVELOPMENT -- DEMONSTRATION OF TECHNOLOGIES FOR THE DISCRIMINATION OR REMEDIATION OF BURIED UXO UNDER PHASE IV SOL S0075-98-UXO-CSJPG4 DUE 041798 POC Technical -- C. Richardson (414) 821-5894; Contractual -- E. Fadul (703) 287-8814 This modification to a previous pre-solicitation notice corrects (1) the due date for submitting a written statement of interest from April 10, 1998 to April 17, 1998; (2) the electronic mail (e-mail) address for the contracting office from fadule@emi.com to fadule@ttemi.com; and (3) the corporate name of the issuing office from PRC Environmental Management Inc. to Tetra Tech EM Inc. The U.S. Army Environmental Center (USAEC) has established a comprehensive program to demonstrate and evaluate technologies for characterizing and remediating active and formerly used defense sites at which buried unexploded ordnance (UXO) is located. The USAEC has completed Phases I, II, and III of the Controlled Site Advanced Technology Demonstration Program at Jefferson Proving Ground (JPG), Indiana, and a series of Live Site Advanced Technology Demonstrations throughout the United States (USAEC Technical Reports: SFIM-AEC-ET-CR-94120, SFIM-AEC-ET-CR-96170, SFIM-AEC-ET-CR-96171, and SFIM-AEC-ET-CR-87011). The results of the technology demonstrations and additional investigations by the Defense Advanced Research Projects Agency (UXO Forum 1997) have shown that state-of-the-art technologies for the detection of UXO, such as magnetometer and active electromagnetic induction systems, have high false alarm rates. Under Phase IV, USAEC seeks a discrimination capability that can be used to reduce the number of unnecessary excavations at remediation sites due to false alarms. The purpose of this synopsis is to seek potential sources that can participate in the demonstration of technologies for the discrimination or remediation of buried UXO under Phase IV. Discrimination capability applies to technologies or techniques that can be used to determine if an anomaly, previously detected and localized by passive or active magnetometry, or by some other method, is UXO or non-UXO. Remediation capability applies to technologies that represent state-of-the-art improvements over what has been previously demonstrated at JPG for remotely excavating UXO. All demonstrators will be required to relocate unmarked positions of targets for "interrogation" or remediation. The USAEC will provide funds for conducting a technology demonstration at JPG. The demonstration of capabilities will take place at JPG during the late summer and fall of 1998 at (1) the 16-hectare (40-acre) test area and (2) a newly established 1-hectare site adjacent to the 16-hectare area. At the conclusion of the project, participants will make their findings available to the government for use in advancing the development of discrimination and remediation technologies. For discrimination technologies, the government will evaluate (1) the capability to differentiate UXO from non-UXO, (2) the production rate of the discrimination technology, and (3) the capability to characterize depth, orientation, declination, size, mass, and target identity. For remediation technologies, the government will evaluate (1) time and efficiency of the excavation process (2) target recovery success (3) travel time between target locations. All parties interested in participating in the discrimination or remediation technology demonstrations must provide a written statement of interest in receiving a request for proposal (RFP) package. Written statements may be transmitted by facsimile or electronic mail and must be received by 5:00 PM, central standard time, Friday, April 17, 1998, at Tetra Tech EM Inc., (Attn: Carol Richardson), 330 South Executive Drive, Suite 203, Brookfield, WI 53005; Technical Contact: Telephone (414) 821-5894; FAX (414) 821-5946, E-MAIL richarc@ttemi.com. Contracts: Telephone (703) 287-8814; FAX (703) 287-8910; E-MAIL fadule@ttemi.com. (0097)

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