Long- and short-term radwaste system changes at the South Texas project

This paper describes a review that has been conducted over the past two years by the Houston Lighting and Power Company to evaluate, redesign, and otherwise modify the STP radioactive waste management systems. The review aimed to identify any changes which are required to assure reliable radwaste operation on a short-term three year basis and to provide information on such areas as the reasons or problems requiring such a change, potential problems caused by the change, and which plants successfully use the hardware, etc., required for the application. The review also identifies the changes which are recommended for long term STP radwaste operations, and for each change recommended, it identifies which of them will require implementation prior to operation and which could be delayed until after plant startup. Results of this review were: extensive addition of temporary connections; enhancement of DAW processing and handling; changes required to comply with 10CFR61, and some 50 short and long-term modifications