U.S. Nuclear Regulatory Commission, Division of Contracts, Attn: Mail Stop T-7-I-2, Washington, D.C. 20555

B -- BORON MIXING EXPERIMENTS POC Mary H. Mace, Contracting Officer, 301/415-7314, Amy Siller, Contract Specialist, 301/415-6747 The U.S. Nuclear Regulatory Commission (NRC) intends to negotiate a sole-source modification with the University of Maryland (UMD) under Contract No. NRC-04-94-052 to provide for assessment of the capability of systems and computational fluid dynamics codes to accurately model the boron mixing experiments; and continuation of the testing services for an additional two years. The Standard Industrial Classification Code is 8999. This contract modification is being pursued on a sole-source basis because UMD has the only Babcock & Wilcox scaled- facility in the world configured to conduct the required experiments. In addition, UMD is the only organization with the required facility, the experimental data that the NRC wishes analyzed, as well as a collection of codes with which to do the analysis required under this contract modification. No other source has the unique combination of experimental facility, system and computational fluid dynamics computer codes, and the expertise necessary to do the effort NRC requires. See Note 22. (0317)

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