AOP-908 Internal Flooding Response

Entry Conditions

Report of flooding

Radwaste ARPs

High Sump/Room Levels in Aux/Cont/Ann/DG/Turb
*These buildings are the specified attachments, Aux building is separated into two attachments (north/rad)

Auxiliary Building North

Attachment 1

Isolate Potable

Isolate FPS (FPS-V101 NI Standpipe)

Annex Building

Attachment 2

Check CCS Intact (A-702 while continuing)

Check VWS Intact (LOCAL Isolate)

Isolate Potable

Isolate FPS (Guidance for affected areas or RNO for yard)

Turbine Building

Attachment 3

Isolate FPS (Guidance for affected areas or RNO for yard)

Check CWS Intact (A-203 while continuing)

Check SWS Intact (A-704 while continuing)

Check TCS Intact (A-209 while continuing)

Check CDS Intact (A-202 while continuing)

Check FWS/SU Intact (A-205/204 while continuing)

Check CCS Intact (A-702 while continuing)

Check VWS Intact (LOCAL Isolate)

Check DWS Intact (LOCAL Isolate)

Auxiliary Building

Attachment 4

Isolate Potable

Isolate FPS

Check CCS Intact (A-702 while continuing)

Check VWS Intact (LOCAL Isolate)

Check DWS Intact (LOCAL Isolate)

STOP CVS MU Pumps when not needed for inventory

Check BAST (LOCAL Isolate)

Check RNS Source (RNS ISOLATION*More details on other card)

Check SFP Stable (Stop Pumps, A-116 while continuing)

Check WHT Rooms (Trasnfer to WMT per SOP, pump down room)

RNS Suction Source Flooding

RNO Actions when known suction source NOT stable

(Attachment 4 Step 10)

Possible Sources: RCS, SFP, CLP, IRWST

Actuate onerous RNS isolation

Ensure Isolation: HLs, 11, 22, 23

Isolate V055 CLP Suction

LOCALLY isolate: V052&53 SFP Suct/Disch

While continuing: Implement A-115/SDP-2 if SDC lost

Containment

Attachment 5

Check Ctmt RR Squibs 118A/B (Isolate 117A/B)

STOP Ctmt Sump Pumps

Isolate FPS

STOP CVS MU Pumps IF leakage identified

Check CCS Intact (A-702 while continuing)

Check RNS Source (same guidance as other card/Att4)

Check SFS CIVs Closed (Stop Pumps, Close 34,35,38)

Check VWS Intact (Close VWS CIVs 58,82,86)

Ensure DWS LOCALLY isolated

Check IRWST (Identify, refill per SOP)

RESTORE Ctmt: when identified AND isolated, AUTO sumps

RESTORE CVS MU: IF intact

*Important: Upon completion sumps are back in Auto if leak isolated and CVS MU back in auto if flooding not from MU line