Emergency Boration AOP

Question 1

Emergency Boration
Entry and Exit Criteria

Answer 1

Entry
- Loss of SDM
Or
- RCS Boron less than required for current plant conditions

Exit
- SDM recovered
- RCS Boron meets requirements for plant conditions
- entry into any EOP or LMFRP is required

Question 2

Emergency Boration
Which pump to use?

Answer 2

Charging pump is first, if it is available
Then HPSI
Then LPSI

Question 3

Emergency Boration
Which suction path to use?

Alternate CHP suction

Answer 3

When RWT level is less than 73%
APP B
All manual valves in the aux building

Question 4

Emergency Boration
Which suction path to use?

Gravity Feed

Answer 4

Gravity Feed is through CHE-536
- no BAMPs
- CHV 501 is closed

Question 5

Emergency Boration
Which flowpath to use?

Through CHN-514

Answer 5

A BAMP is available
CHN-536 is closed

You can still go through CHN-514 if a BAMP is not available, if:
- you can only run two CHPs
- you have to stop any fuel pool cleanup pumps
- you have to close CHN-501 and open its breaker