Data compilation report: Gas and liquid samples from K West Basin fuel storage canisters

Statistical analysis of the K West fuel element visual examination results

“…blanket (gas space) was obtained by forcing nitrogen gas through a l i d valve while expelling water from the barrel and leaving a 64 mm gas space over t h e fuel (Trimble 1996). This a l s o cleared most water from the gas t r a p .…”

Feasibility Report on Criticality Issues Associated with Storage of K Basin Sludge in Tanks Farms

“…one might assume that the buildup o f n i t r i c acid i n the K West canisters w i l l be restricted or prevented, compared t o the open K East canisters, by the limited gas space (5.6 t o 6.4 cm) o f nitrogen established on the top o f the 20.51-cm wide sealed canisters [dimensions from Trimble (1997b)l. Trimble (1995aTrimble ( ,b:1996aTrimble ( ,b:1997a and (Trimble and Welsh 1997).…”

“…After flooding, the canister was set aside f o r eight or more hours t o allow the barrel l i q u i d reach equilibrium with the flood water via thermal mixing (Trimble 1996a) . During the second sampling and characterization campaign f o r the K West basin canisters, the l i q u i d sampling was completed 24 o r more hours a f t e r flooding (Trimble 1997b).…”

“…For those areas where the sludge has remained r e l a t i v e l y undisturbed 1 When the canisters were sealed, 10 g of potassium n i t r i t e was added as a corrosion i n h i b i t o r resulting i n a concentrations o f 500 mg/l dissolved n i t r i t e (Trimble 1996a) . This n i t r i t e oxidizes over time t o form n i t r a t e .…”

Analysis of K west basin canister gas

“…The analysis r e s u l t s from the f i r s t campaign have been reported (Trimble 1995a(Trimble , 1995b(Trimble , 1996a(Trimble , 1996b. The analysis r e s u l t s from the second campaign liquid samples have been documented (Trimble and Welsh 1997;Trimble 1997).…”