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Production rates of the Hanford reactors can be increased in proportion to the quantity of process cooling water which can be supplied to them. This water must be of such a quality that slug and tube corrosion rates are acceptable, the gross activity of the effluent water must not be excessive, the concentration of specific radioactive isotopes constituting a radiological hazard must be minimized, and the film formation rates should be as low as possible. In the Hanford water treatment process, the filter plants are the controlling factor in determining the quality of the water, and one of the elements limiting the quality of water. A major development effort was therefore undertaken to develop methods of increasing the capacity of the existing filter plants. This report presents the result of this development work from its inception in 1951 to its conclusion in 1954.

This document from Savannah River Plant reports progress for June 1955 in the 100, 200, 300, and 400 Areas. Information is presented on the assembly area, reactor control, reactor complex, and disassembly for the 100 Area (reactors). From the 200 Area (separations plants), progress at the solvent extraction plants is reported. Uranium - Aluminium and thorium canning are reported for the 300 area (reactor fuels fabrication). And stainless steel corrosion studies are reported for the 400 area (heavy water).

Study approvals are listed with man-months and date specified. Information and safety agreements were reached. Occupational safety and radiation protection, fuel slug development, instrumentation, ingot rolling, and security violations are discussed topics. Appendices contain information on financial status, pile materials program, instrument development program, and technical division study status. (GHH)