The value -6.5m is the result of manual calculation from “HYDRAULIC ANALYSIS REPORT FOR CCB New Seawater Cooling Intake System”, the -6.30 m is the result of software calculation from “Intake Pump Station Overflow Analysis ”, so there is some deviation. The results of the two calculation methods were close, so the both results are acceptable. Now the design of pump station based on -6.5m is safer. TOSHA has no more comments.