Component (service exposed) Temp. °C RL, yrs Confidence Interval (CI) Lower CI Upper CI CCU reactor 515 2.4 99% 2.33 2.48 520 0.47 0.42 0.52 FPU column 515 4.78 99% 4.73 4.83 520 3.34 3.3 3.38

Table 3: Remaining life Assessment of 55 years service exposed CCU reactor (ASTM A201 Gr.A) and FPU column (ASTM A285 Gr.C) material with 99 % confidence limit.