A novel aqueous-phase thermal (APT) oxidation apparatus has been designed for the cost-effective treatment of organically contaminated aqueous streams. During the operational period of this task, the specific components will be integrated and tested to evaluate their operability. A determination will also be made as to the ability of the integrated system to adequately remediate an organically contaminated aqueous stream. The overall objective of this task is to perform a sequentially integrated test of the critical components of the novel APT oxidation apparatus to evaluate the ability of this system to remediate an organically contaminated aqueous stream.