N Reactor Spent Fuel Storage Basin

N Reactor Spent Fuel Storage Basin (Above Water). CI5-7... 

Until December 1984, essentially all the °Sr and Cs discharged to the 116-N-l crib originated in the N Reactor spent fuel storage basin. The spent fuel storage basin operated in a single-pass cooling mode from the time of initial N Reactor operation until a recirculation system was installed in December 1984 (DOE-RL 1990). 

N Reactor fuel elements were discharged to the spent fuel basin via a large tunnel-like canal located at the outlet face of the N Reactor. During this transfer process, a large quantity of reactor primary-cooling-circuit water, containing considerable amounts of suspended and soluble metals and metal oxides was added to the spent fuel storage basin. Excess basin water was routed to the 116-N-l and/or 116-N-3 cribs via the basin overflow weirs and a... 

The 116-N-3 facility, like the 116-N-l facility, received radioactive liquid effluents from the RCS, spent fuel storage basin, periphery coolant systems, and various radioactive drain systems located throughout the reactor facility. The average monthly flow rate into the 116-N-3 facility during 1983 through 1986, when the N Reactor was in normal operation, was approximately 5,300 L/min (1,400 gal/min) (DOE-RL 1990). 

N-1 1301-N Liquid radioactive waste disposal system for N Reactor. Effluents from reactor coolant system, spent fuel storage basin, periphery coolant systems, and various radioactiv e drain systems in the reactor facility. Also disposal area for various laboratory chemicals. Historical average high flow rate of 2.100 gal/min. Crib and trench. 

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