Palisades Component Cooling Water System Leak

See, this system is nothing but junk...keeps causing troubles.

 IR2011001/005

Inspection Scope

The inspectors reviewed the following issues:

• cooling tower degradation;

• service water pinhole leaks;

• pressurizer pressure indicator degradation;

• C Primary coolant pump due to increased vibrations; and

• component cooling water heat exchanger flow degradation.

...containment spray during ‘B’ pump maintenance;

• component cooling water during ‘B’ pump maintenance;

• 1-1 diesel generator during 1-2 diesel generator inoperability for emergent

ventilation work; and

• low pressure injection with ‘A’ pump out-of-service

The inspectors selected these systems based on their risk significance

2011003

Additionally, the licensee determined that the “white spots” on the head were the result of boron staining, white mastic residue used to attach insulation to the head, or chromate water deposits from a previous component cooling water leak.

2010002

The inspectors evaluated degraded performance issues involving the following

risk-significant systems:

• component cooling water system; and

 

....risk during planned component cooling water pump outage;