WL

Question 1

What is the purpose of The Liquid Waste System?

Answer 1

Collects, segregates, and processes all radioactive and potentially radioactive liquids generated in the plant

Question 2

What are the inputs to the Steam Generator Drain Tank (SGDT)?

Answer 2

• Waste Evaporator Feed Tank (WEFT)
• Floor Drain Tank (FDT, alternate pathway)
• TB Sumps (when Contaminated)

Question 3

What are the inputs to the Reactor Coolant Drain Tank (NCDT)?

Answer 3

• NCP’s #2 and #3 seal leakoffs.
• Piped up valve leakoffs.
• Excess Letdown Heat Exchanger effluent when aligned to NCDT.
• Misc. equipment drains

Question 4

What are the normal inputs to the Ventilation Unit Condensate Drain Tank (VUCDT)?

Answer 4

• Upper & Lower Containment Unit Vents
• Incore Instrumentation Room AHUs
• ICE Melt (major outage input)

Question 5

What signals will close WL-867A/WL-869B (VUCDT Containment Isol)?

Answer 5

• Phase A Signal
• High Radiation (Trip 2) from EMF-53A/B (Containment Area Monitor).

Question 6

What EMF monitors releases from the Recycle Monitor Tank (RMT) and what valve closes on a trip 2 signal?

Answer 6

EMF-49 trip 2 closes 1WL-124

Question 7

Can a release from the Recycle Monitor Tank (RMT) be performed if RN is aligned to the SNSWP?

Answer 7

No, to perform a release from the RMT, RN must be aligned to Lake Wylie.

Question 8

What EMF monitors the Non-Contaminated Area Floor Drains (Clean Drain sumps (C & D)) and what happens on a trip 2 signal?

Answer 8

• EMF-52 (Clean Floor Drain Sump) trip 2 will divert the flow from the Turbine building sump to the ND/NS sump.

Question 9

What EMF monitors the CA pump room sumps and what happens on a trip 2 signal?

Answer 9

• EMF-52 (Clean Floor Drain Sump) trip 2 will divert the flow from the Turbine building sump to the ND/NS sump.

Question 10

If the ‘A’ CAPT Sump Pump becomes non-functional what is impacted?

Answer 10

The CAPT is inoperable and the SSF is non-functional.

Question 11

If the ‘B’ CAPT Sump Pump becomes non-functional what is impacted?

Answer 11

The CAPT inoperable

Question 12

What signals will close WL-825A/WL-827B (CONTAINMENT SUMP PUMPS DISCH CONTAINMENT ISOL)?

Answer 12

• Phase A Signal
• High Radiation (Trip 2) from EMF-53A/B (Containment Area Monitor).

Question 13

If EMF-52 (Clean Area Floor Drain Monitor) trip 2 is reset, will the flow automatically realign to the Turbine building sump?

Answer 13

Yes, the alarm shall not be reset without RP permission

Question 14

What occurs on a trip 2 on 0EMF-49 (Liquid Waste Discharge Monitor)?

Answer 14

Closes 1WL-124

Question 15

What occurs on a trip 2 on EMF-31 (Turbine Building Sump Radiation Monitors)?

Answer 15

Stop all affected TB Sump pumps

Question 16

How many times can you restart a release being monitored from 0EMF-49?

Answer 16

Twice, if the release is auto terminated a third time the Liquid Release Evolution must be secured and the Liquid Waste Release Permit closed out.

Question 17

What is the limit for the quantity of radioactive material contained in each temporary unprotected outdoor tank?

Answer 17

Less than or equal to 10 Curies, excluding
tritium and dissolved or entrained noble gases.

Question 18

What is the Mode of Applicability for SLC 16.6-5 Residual Heat Removal/Containment Spray Sump Pump Interlock?

Answer 18

MODES 1, 2, 3, and 4 on either Unit 1 or Unit 2

Question 19

What is the Basis for the residual heat removal/containment spray sump pump interlock?

Answer 19

• To alert the operator to potential Emergency Core Cooling System leakage