BWR Totals

SYSTEM DESIGN INFORMATION 

For underground piping segments in the system:

One or more 

underground 

segments?

Safety 

Related?

Contains 

Licensed 

Radioactive 

Material?

Contains 

Environmentally 

Hazardous 

Material?

Subjected to Sec XI quarterly O&M flow tests?

Comments, 

including 

piping 

materials "C" 

or "O"

System 1 or blank 1,0 1,0 1,0 AL CU C* FE O* P S SS 1 2

3H

E 3 1,0

Typical Underground SystemsAux./Emergency Feedwater System (PWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Auxiliary Steam System 3 0 3 0 000 0 00 3 0 000 0 0 0Carbon Dioxide (CO2) Supply System 0 0 0 0 000 0 00 0 0 000 0 0 0Chilled Water System 0 0 0 0 000 0 00 0 0 000 0 0 0Closed/Component Cooling Water System 1 1 0 0 000 0 00 1 0 000 1 1 0Cooling Tower Blowdown 6 0 4 2 002 0 10 4 1 000 0 0 0Condensate System 17 3 17 5 2 0 1 1 0 0 11 9 0 0 0 2 3 0Condensate Demineralizer System 2 1 1 0 000 0 00 1 1 000 1 1 0Condensate and Feedwater Chem. Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0CVC/Makeup and Purification Sys. (PWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Demin. Water Storage and Transfer Sys. 1 0 1 0 000 0 00 1 0 000 0 0 0Diesel Fuel Oil System 30 17 1 30 0 0 0 5 2 0 25 1 0 0 0 3 1 0Diesel Lube Oil System 6 1 0 6 000 3 00 3 0 000 0 0 0Equipment and Floor Drains System 9 0 7 4 010 3 32 5 3 000 0 0 0Emergency/Standby Gas Treatment System 12 8 9 0 1 0 0 0 0 0 11 0 0 1 0 1 1 0Essential Service Water System 27 27 0 2 0 0 1 5 1 0 21 1 0 1 0 22 24 0Essential Air System 0 0 0 0 000 0 00 0 0 000 0 0 0Feedwater System 3 0 3 1 000 0 00 2 1 000 0 0 0Fire Protection System (Water) 3 3 0 0 000 3 00 0 0 000 0 0 0Fire Protection System (Chemical) 0 0 0 0 000 0 00 0 0 000 0 0 0Fuel Oil Storage and Transfer System 20 5 2 20 0 1 1 5 1 2 15 0 0 0 0 1 0 0Gaseous Waste Management System (PWR) 0 0 0 0 000 0 00 0 0 000 0 0 0High Pressure Core Spray System (BWR) 9 7 8 3 100 0 00 2 7 020 3 5 0HPSI System (PWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Hydrogen Supply System 2 0 0 2 000 0 00 1 1 000 0 0 0Hydrogen Water Chemistry System 2 0 0 2 000 0 00 3 0 000 0 0 0Instrument Air Supply System 0 0 0 0 000 0 00 0 0 000 0 0 0Insulating Oil System 0 0 0 0 000 0 00 0 0 000 0 0 0Liquid Waste Management System 18 1 15 10 0 0 0 0 3 0 15 3 0 0 0 0 0 0Lube Oil System 9 0 1 9 000 4 00 5 0 000 0 0 0Main Generator Hydrogen Cooling System 0 0 0 0 000 0 00 0 0 000 0 0 0Makeup Demineralizer System 0 0 0 0 000 0 00 0 0 000 0 0 0Nitrogen Supply System 0 0 0 0 000 0 00 0 0 000 0 0 0Nonessential Service Water System 6 5 1 1 021 0 00 5 0 000 1 2 0Offgas System (BWR) 19 6 16 6 0 1 0 3 0 0 16 2 0 0 0 2 0 0Plant Hot Water System 2 0 2 0 000 0 00 2 0 000 0 0 0Potable Water Distribution System 0 0 0 0 000 0 00 0 0 000 0 0 0Raw Water Makeup System 2 1 0 1 000 0 00 1 1 000 1 1 0Reactor Core Iso. Cooling Sys. (BWR) 7 6 6 3 000 0 00 0 7 030 3 3 0Sanitary Waste Processing System 5 0 1 4 000 3 24 2 0 000 0 0 0RHR/LPCI System (BWR) 6 2 5 2 000 1 00 3 2 000 1 1 0RHR/LPSI System (PWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Service Air System 0 0 0 0 000 0 00 0 0 000 0 0 0Steam Generator Blowdown System (PWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Turbine Drains and Misc. Piping Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Turbine Bldg. Closed Cooling Water System 2 0 2 0 000 0 00 2 0 000 0 0 0Wastewater Disposal System 3 0 0 3 000 2 00 1 0 000 0 0 0Yard Handling and Maintenance System 4 0 4 0 001 1 01 3 0 000 0 0 0Water Filtration System 0 0 0 0 000 0 00 0 0 000 0 0 0

0 0 0 0 000 0 00 0 0 000 0 0 0

Predominant material on the exterior side of the piping. Enter "1" for all that apply

Piping Classes Enter a "1" for all that apply
BWR Totals

SYSTEM DESIGN INFORMATION 

For underground piping segments in the system:

One or more 

underground 

segments?

Safety 

Related?

Contains 

Licensed 

Radioactive 

Material?

Contains 

Environmentally 

Hazardous 

Material?

Subjected to Sec XI quarterly O&M flow tests?

Comments, 

including 

piping 

materials "C" 

or "O"

System 1 or blank 1,0 1,0 1,0 AL CU C* FE O* P S SS 1 2

3H

E 3 1,0

Predominant material on the exterior side of the piping. Enter "1" for all that apply

Piping Classes Enter a "1" for all that apply

Other Systems that may be Underground 0 0 0 0 000 0 00 0 0 000 0 0 0Access Corridors Environmental Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Admin. Bldg. Environmental Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Aux. Bldg. Environmental Control System 0 0 0 0 000 0 00 0 0 000 0 0 0Boron Recycle System (PWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Breathing Air System 0 0 0 0 000 0 00 0 0 000 0 0 0Cask Decontamination System 0 0 0 0 000 0 00 0 0 000 0 0 0Cntl. Bldg./Complex Environ. Cntl. Sys. 1 1 0 0 000 0 00 1 0 000 1 0 0Condensate Storage and Transfer System 21 7 20 5 1 0 0 0 0 0 13 15 0 4 0 2 3 0Condenser Tube Cleaning System 0 0 0 0 000 0 00 0 0 000 0 0 0Condenser Vacuum System 0 0 0 0 000 0 00 0 0 000 0 0 0Diesel Cooling Water System 4 4 0 0 000 0 02 4 0 000 2 2 0Diesel Generator Starting Air System 0 0 0 0 000 0 00 0 0 000 0 0 0Emerg. Onsite Pwr. Supp. Bldg. Env. Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0EOF Environ. Control Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Feedwater Pump Injection and Misc. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Fuel Bldg. Environmental Control Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Fuel Pool Cooling and Purification System 3 0 3 0 100 0 00 2 1 000 0 0 0Gland Seal Water Supply System 0 0 0 0 000 0 00 0 0 000 0 0 0Heat Rejection Chemical Treatment System 0 0 0 0 000 0 00 0 0 000 0 0 0Heat Rejection System 0 0 0 0 000 0 00 0 0 000 0 0 0HP Heater and MSR Drains and Vents System 1 0 1 0 000 0 00 1 0 000 0 0 0Isolation Condenser System (BWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Laboratory Gas System 0 0 0 0 000 0 00 0 0 000 0 0 0Leak Monitoring System 0 0 0 0 000 0 00 0 0 000 0 0 0Low Pressure Core Spray System (BWR) 4 4 4 1 000 0 00 2 2 010 0 1 0LP Heater Drains and Vents System 0 0 0 0 000 0 00 0 0 000 0 0 0Lube Oil Storage and Transfer System 10 0 3 10 0 0 0 6 0 0 4 0 0 0 0 0 0 0Main Generator Gas Purge System 0 0 0 0 000 0 00 0 0 000 0 0 0Main Generator Seal Oil System 0 0 0 0 000 0 00 0 0 000 0 0 0Main Generator Stator Cooling System 0 0 0 0 000 0 00 0 0 000 0 0 0Main Turbine Control Fluid System 0 0 0 0 000 0 00 0 0 000 0 0 0Main Turbine System 0 0 0 0 000 0 00 0 0 000 0 0 0Main/Reheat Steam System 0 0 0 0 000 0 00 0 0 000 0 0 0Material and Eqipment Handling System 0 0 0 0 000 0 00 0 0 000 0 0 0Miscellaneous Turbine Vents System 0 0 0 0 000 0 00 0 0 000 0 0 0Plant Exhaust System 4 0 4 0 103 0 00 0 0 000 0 0 0Pumping Station Environmental Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Radwaste Bldg. Environmental Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Reactor Bldg. Environmental Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Removable Chemical Cleaning System 0 0 0 0 000 0 00 0 0 000 0 0 0Sampling and Water Quality System 1 0 0 1 000 0 00 1 0 000 0 0 0Security Bldg. Environmental Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Service Bldg. Environmental Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Shield Annulus Return and Exhaust System 0 0 0 0 000 0 00 0 0 000 0 0 0Sludge Waste Dewatering System 1 0 1 0 000 0 00 1 0 000 0 0 0Solid Waste Management System 0 0 0 0 000 0 00 0 0 000 0 0 0Standby Liquid Control System (BWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Steam Extraction System 3 0 3 0 000 0 00 3 1 000 0 0 0Steam Generator Blowdown System (PWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Suppression Pool Makeup System (BWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Suppression Pool Purification Sys. (BWR) 0 0 0 0 000 0 00 0 0 000 0 0 0Tech. Support Ctr. Environ. Cntl. Sys. 1 0 0 1 000 0 00 1 0 000 0 0 0Turbine Bldg. Environ. Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Turbine Lube Oil System 3 0 0 3 000 3 00 0 0 000 0 0 0Turbine Steam Seal System 0 0 0 0 000 0 00 0 0 000 0 0 0Ultimate Heat Sink System 5 0 2 3 003 0 00 4 0 000 0 0 0Visitors Center Environ. Cntl. Sys. 0 0 0 0 000 0 00 0 0 000 0 0 0Water Treatment Bldg. Environ. Cntl. Sys. 1 0 0 1 000 0 01 0 1 000 0 0 0Welding Gas System 0 0 0 0 000 0 00 0 0 000 0 0 0

0 0 0 0 000 0 00 0 0 000 0 0 0
BWR Totals

SYSTEM DESIGN INFORMATION 

For underground piping segments in the system:

One or more 

underground 

segments?

Safety 

Related?

Contains 

Licensed 

Radioactive 

Material?

Contains 

Environmentally 

Hazardous 

Material?

Subjected to Sec XI quarterly O&M flow tests?

Comments, 

including 

piping 

materials "C" 

or "O"

System 1 or blank 1,0 1,0 1,0 AL CU C* FE O* P S SS 1 2

3H

E 3 1,0

Predominant material on the exterior side of the piping. Enter "1" for all that apply

Piping Classes Enter a "1" for all that apply

Plant Specific Important Underground Systems 0 0 0 0 000 0 00 0 0 000 0 0 0

0 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 00 0 0 0 000 0 00 0 0 000 0 0 0

Containment Spray 0 0 0 0 000 0 00 0 0 000 0 0 0Primary Water Storage and Transfer 0 0 0 0 000 0 00 0 0 000 0 0 0Water Treatment Systems 4 0 0 4 000 0 04 0 0 000 0 0 0Miscellaneous Oil Systems 1 0 0 1 000 1 00 0 0 000 0 0 0Circulating Water System 0 0 0 0 000 0 00 0 0 000 0 0 0

AL CU C FE O P S SS

TOTALS 304 110 150 146 7 5 13 49 13 16 201 60 0 12 0 47 49
BWR Totals

SYSTEM 

For underground piping segments in the system:

System

Typical Underground SystemsAux./Emergency Feedwater System (PWR)Auxiliary Steam SystemCarbon Dioxide (CO2) Supply SystemChilled Water SystemClosed/Component Cooling Water System Cooling Tower BlowdownCondensate SystemCondensate Demineralizer SystemCondensate and Feedwater Chem. Cntl. Sys.CVC/Makeup and Purification Sys. (PWR)Demin. Water Storage and Transfer Sys.Diesel Fuel Oil SystemDiesel Lube Oil SystemEquipment and Floor Drains SystemEmergency/Standby Gas Treatment SystemEssential Service Water SystemEssential Air SystemFeedwater SystemFire Protection System (Water)Fire Protection System (Chemical)Fuel Oil Storage and Transfer SystemGaseous Waste Management System (PWR)High Pressure Core Spray System (BWR)HPSI System (PWR)Hydrogen Supply SystemHydrogen Water Chemistry SystemInstrument Air Supply SystemInsulating Oil SystemLiquid Waste Management SystemLube Oil SystemMain Generator Hydrogen Cooling SystemMakeup Demineralizer SystemNitrogen Supply SystemNonessential Service Water SystemOffgas System (BWR)Plant Hot Water SystemPotable Water Distribution SystemRaw Water Makeup SystemReactor Core Iso. Cooling Sys. (BWR)Sanitary Waste Processing SystemRHR/LPCI System (BWR)RHR/LPSI System (PWR)Service Air SystemSteam Generator Blowdown System (PWR)Turbine Drains and Misc. Piping Sys.Turbine Bldg. Closed Cooling Water SystemWastewater Disposal SystemYard Handling and Maintenance SystemWater Filtration System 

LEAKAGE EVENT INFORMATION 

Number 

of Events

Number 

of Events

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

0 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 3 0300200 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 1 0100100 000000000000 0 000000000000 0 0000000 000000000000 2 011000010100 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 1 0010000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 1 100000000001 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 1 100000000100 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 000000

2009

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes

applicabl

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

2007 2008
BWR Totals

SYSTEM 

For underground piping segments in the system:

System

Other Systems that may be UndergroundAccess Corridors Environmental Cntl. Sys.Admin. Bldg. Environmental Cntl. Sys.Aux. Bldg. Environmental Control SystemBoron Recycle System (PWR)Breathing Air SystemCask Decontamination SystemCntl. Bldg./Complex Environ. Cntl. Sys.Condensate Storage and Transfer SystemCondenser Tube Cleaning SystemCondenser Vacuum SystemDiesel Cooling Water SystemDiesel Generator Starting Air SystemEmerg. Onsite Pwr. Supp. Bldg. Env. Cntl. Sys.EOF Environ. Control Sys.Feedwater Pump Injection and Misc. Sys.Fuel Bldg. Environmental Control Sys.Fuel Pool Cooling and Purification SystemGland Seal Water Supply SystemHeat Rejection Chemical Treatment SystemHeat Rejection SystemHP Heater and MSR Drains and Vents SystemIsolation Condenser System (BWR)Laboratory Gas SystemLeak Monitoring SystemLow Pressure Core Spray System (BWR)LP Heater Drains and Vents SystemLube Oil Storage and Transfer SystemMain Generator Gas Purge SystemMain Generator Seal Oil SystemMain Generator Stator Cooling SystemMain Turbine Control Fluid SystemMain Turbine SystemMain/Reheat Steam SystemMaterial and Eqipment Handling SystemMiscellaneous Turbine Vents SystemPlant Exhaust SystemPumping Station Environmental Cntl. Sys.Radwaste Bldg. Environmental Cntl. Sys.Reactor Bldg. Environmental Cntl. Sys.Removable Chemical Cleaning SystemSampling and Water Quality SystemSecurity Bldg. Environmental Cntl. Sys.Service Bldg. Environmental Cntl. Sys.Shield Annulus Return and Exhaust SystemSludge Waste Dewatering SystemSolid Waste Management SystemStandby Liquid Control System (BWR)Steam Extraction SystemSteam Generator Blowdown System (PWR)Suppression Pool Makeup System (BWR)Suppression Pool Purification Sys. (BWR)Tech. Support Ctr. Environ. Cntl. Sys.Turbine Bldg. Environ. Cntl. Sys.Turbine Lube Oil SystemTurbine Steam Seal SystemUltimate Heat Sink SystemVisitors Center Environ. Cntl. Sys.Water Treatment Bldg. Environ. Cntl. Sys.Welding Gas System

LEAKAGE EVENT INFORMATION 

Number 

of Events

Number 

of Events

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

2009

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes

applicabl

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

2007 2008

0 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 2 0200200 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000001 010000010000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 000000
BWR Totals

SYSTEM 

For underground piping segments in the system:

System

Plant Specific Important Underground SystemsContainment SprayPrimary Water Storage and TransferWater Treatment SystemsMiscellaneous Oil SystemsCirculating Water System

TOTALS

LEAKAGE EVENT INFORMATION 

Number 

of Events

Number 

of Events

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

2009

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes

applicabl

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

2007 2008

0 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 0000000 000000000000 0 000000000000 0 000000

1 010000010000 4 211000010201 7 061050
BWR Totals

SYSTEM 

For underground piping segments in the system:

System

Typical Underground SystemsAux./Emergency Feedwater System (PWR)Auxiliary Steam SystemCarbon Dioxide (CO2) Supply SystemChilled Water SystemClosed/Component Cooling Water System Cooling Tower BlowdownCondensate SystemCondensate Demineralizer SystemCondensate and Feedwater Chem. Cntl. Sys.CVC/Makeup and Purification Sys. (PWR)Demin. Water Storage and Transfer Sys.Diesel Fuel Oil SystemDiesel Lube Oil SystemEquipment and Floor Drains SystemEmergency/Standby Gas Treatment SystemEssential Service Water SystemEssential Air SystemFeedwater SystemFire Protection System (Water)Fire Protection System (Chemical)Fuel Oil Storage and Transfer SystemGaseous Waste Management System (PWR)High Pressure Core Spray System (BWR)HPSI System (PWR)Hydrogen Supply SystemHydrogen Water Chemistry SystemInstrument Air Supply SystemInsulating Oil SystemLiquid Waste Management SystemLube Oil SystemMain Generator Hydrogen Cooling SystemMakeup Demineralizer SystemNitrogen Supply SystemNonessential Service Water SystemOffgas System (BWR)Plant Hot Water SystemPotable Water Distribution SystemRaw Water Makeup SystemReactor Core Iso. Cooling Sys. (BWR)Sanitary Waste Processing SystemRHR/LPCI System (BWR)RHR/LPSI System (PWR)Service Air SystemSteam Generator Blowdown System (PWR)Turbine Drains and Misc. Piping Sys.Turbine Bldg. Closed Cooling Water SystemWastewater Disposal SystemYard Handling and Maintenance SystemWater Filtration System 

Number 

of Events

Total 

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

0 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 01 001000000100 4 31 2 1 10 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 01 010000000010 22 1 10 000000000000 02 101000000011 4 112 1 1110 000000000000 00 000000000000 05 005000050000 66 60 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 11 10 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 03 201000000300 32 1 30 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 11 10 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000

2010 LEAK TOTALS

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak
BWR Totals

SYSTEM 

For underground piping segments in the system:

System

Other Systems that may be UndergroundAccess Corridors Environmental Cntl. Sys.Admin. Bldg. Environmental Cntl. Sys.Aux. Bldg. Environmental Control SystemBoron Recycle System (PWR)Breathing Air SystemCask Decontamination SystemCntl. Bldg./Complex Environ. Cntl. Sys.Condensate Storage and Transfer SystemCondenser Tube Cleaning SystemCondenser Vacuum SystemDiesel Cooling Water SystemDiesel Generator Starting Air SystemEmerg. Onsite Pwr. Supp. Bldg. Env. Cntl. Sys.EOF Environ. Control Sys.Feedwater Pump Injection and Misc. Sys.Fuel Bldg. Environmental Control Sys.Fuel Pool Cooling and Purification SystemGland Seal Water Supply SystemHeat Rejection Chemical Treatment SystemHeat Rejection SystemHP Heater and MSR Drains and Vents SystemIsolation Condenser System (BWR)Laboratory Gas SystemLeak Monitoring SystemLow Pressure Core Spray System (BWR)LP Heater Drains and Vents SystemLube Oil Storage and Transfer SystemMain Generator Gas Purge SystemMain Generator Seal Oil SystemMain Generator Stator Cooling SystemMain Turbine Control Fluid SystemMain Turbine SystemMain/Reheat Steam SystemMaterial and Eqipment Handling SystemMiscellaneous Turbine Vents SystemPlant Exhaust SystemPumping Station Environmental Cntl. Sys.Radwaste Bldg. Environmental Cntl. Sys.Reactor Bldg. Environmental Cntl. Sys.Removable Chemical Cleaning SystemSampling and Water Quality SystemSecurity Bldg. Environmental Cntl. Sys.Service Bldg. Environmental Cntl. Sys.Shield Annulus Return and Exhaust SystemSludge Waste Dewatering SystemSolid Waste Management SystemStandby Liquid Control System (BWR)Steam Extraction SystemSteam Generator Blowdown System (PWR)Suppression Pool Makeup System (BWR)Suppression Pool Purification Sys. (BWR)Tech. Support Ctr. Environ. Cntl. Sys.Turbine Bldg. Environ. Cntl. Sys.Turbine Lube Oil SystemTurbine Steam Seal SystemUltimate Heat Sink SystemVisitors Center Environ. Cntl. Sys.Water Treatment Bldg. Environ. Cntl. Sys.Welding Gas System

Number 

of Events

Total 

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

2010 LEAK TOTALS

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

0 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 22 20 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 0

0 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 01 001000010000 2 11 20 000000000000 00 000000000000
BWR Totals

SYSTEM 

For underground piping segments in the system:

System

Plant Specific Important Underground SystemsContainment SprayPrimary Water Storage and TransferWater Treatment SystemsMiscellaneous Oil SystemsCirculating Water System

TOTALS

Number 

of Events

Total 

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

2010 LEAK TOTALS

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

0 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 0

13 3 1 9 0 0 0 0 6 0 4 2 1 25 5 9 11 0 5 0 0 9 0 6 2 3
PWR Totals

SYSTEM DESIGN INFORMATION

For underground piping segments in the system:

One or more 

underground 

segments?

Safety 

Related?

Contains Licensed 

Radioactive 

Material?

Contains 

Environmentally 

Hazardous 

Material?

Subjected to Sec XI quarterly O&M flow tests?

Comments, 

including 

piping 

materials 

"C" or "O"

System 1 or blank 1,0 1,0 1,0 AL CU C* FE O* P S SS 1 2

3H

E 3 1,0

Typical Underground SystemsAux./Emergency Feedwater System (PWR) 28 22 12 3 0 0 1 0 0 0 17 13 0 0 0 18 12 0Auxiliary Steam System 9 1 8 0 00 1 2 0 0 6 0 0 0 0 1 0 0Carbon Dioxide (CO2) Supply System 1 0 0 1 00 0 0 0 0 1 1 0 0 0 0 0 0Chilled Water System 4 0 4 0 00 0 0 0 0 3 1 0 0 0 0 0 0Closed/Component Cooling Water System 6 1 5 0 00 1 0 0 0 4 0 0 0 0 1 0 0Cooling Tower Blowdown 6 0 6 4 00 0 0 3 2 1 0 0 0 0 0 0 0Condensate System 22 7 20 0 0 0 1 3 0 0 13 9 0 1 0 6 7 0Condensate Demineralizer System 12 0 8 5 0 0 0 0 3 1 7 2 0 0 0 0 0 0Condensate and Feedwater Chem. Cntl. Sys. 10 0 3 10 0 0 0 3 0 1 6 7 0 0 0 0 0 0CVC/Makeup and Purification Sys. (PWR) 10 6 9 1 0 0 0 0 0 0 1 9 0 6 0 3 6 0Demin. Water Storage and Transfer Sys. 3 0 3 0 00 0 0 0 0 3 2 0 0 0 0 0 0Diesel Fuel Oil System 56 45 0 51 0 0 2 3 0 0 44 8 0 2 0 24 9 0Diesel Lube Oil System 5 3 0 5 00 1 0 0 0 4 0 0 0 0 0 0 0Equipment and Floor Drains System 20 0 16 11 0 0 3 6 3 2 14 9 0 1 0 1 0 0Emergency/Standby Gas Treatment System 1 1 1 0 00 0 0 0 0 1 0 0 0 0 0 0 0Essential Service Water System 59 59 10 9 2 4 8 4 0 1 50 10 0 2 0 54 38 0Essential Air System 2 2 0 0 00 0 0 0 0 1 1 0 0 0 0 0 0Feedwater System 3 0 3 0 00 0 0 0 0 2 3 0 0 0 0 0 0Fire Protection System (Water) 6 3 0 1 00 2 5 0 3 4 0 0 0 0 2 0 0Fire Protection System (Chemical) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Fuel Oil Storage and Transfer System 33 11 2 33 0 0 2 3 1 2 26 3 0 0 0 5 4 0Gaseous Waste Management System (PWR) 6 1 6 0 00 0 0 0 0 6 1 0 0 0 1 0 0High Pressure Core Spray System (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0HPSI System (PWR) 7 7 7 0 00 0 0 0 0 0 7 0 5 0 0 7 0Hydrogen Supply System 13 1 0 10 0 0 1 0 0 0 10 3 0 0 0 0 0 0Hydrogen Water Chemistry System 1 1 0 0 00 0 0 0 0 1 0 0 0 0 0 0 0Instrument Air Supply System 7 6 0 0 01 0 0 0 0 6 0 0 2 0 0 0 0Insulating Oil System 2 0 1 0 00 0 0 0 0 1 1 0 0 0 0 0 0Liquid Waste Management System 47 6 46 7 0 0 0 0 3 3 15 33 0 2 0 0 0 0Lube Oil System 8 0 0 8 00 0 0 0 0 8 0 0 0 0 0 1 0Main Generator Hydrogen Cooling System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Makeup Demineralizer System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Nitrogen Supply System 1 0 0 1 00 0 0 0 0 1 0 0 0 0 0 0 0Nonessential Service Water System 12 0 9 6 0 0 3 0 3 2 9 0 0 0 0 0 2 0Offgas System (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Plant Hot Water System 2 0 2 0 00 0 0 0 0 2 0 0 0 0 0 0 0Potable Water Distribution System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Raw Water Makeup System 4 3 0 1 00 0 0 0 0 4 0 0 0 0 3 0 0Reactor Core Iso. Cooling Sys. (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Sanitary Waste Processing System 4 0 0 4 00 0 3 0 0 1 1 0 0 0 0 0 0RHR/LPCI System (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0RHR/LPSI System (PWR) 12 10 12 0 0 0 0 0 0 0 0 12 0 10 0 4 7 0Service Air System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Steam Generator Blowdown System (PWR) 18 7 15 3 0 0 0 0 1 2 15 1 0 0 0 0 0 0Turbine Drains and Misc. Piping Sys. 9 0 8 2 00 1 0 0 0 6 2 0 0 0 0 0 0Turbine Bldg. Closed Cooling Water System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Wastewater Disposal System 15 2 14 7 0 0 0 3 3 7 9 2 0 0 0 0 0 0Yard Handling and Maintenance System 12 0 12 1 0 0 2 3 2 4 8 1 0 0 0 0 0 0Water Filtration System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0

Predominant material on the exterior side of the piping. Enter "1" for all that apply

Piping Classes Enter a "1" for all that apply
PWR Totals

SYSTEM DESIGN INFORMATION

For underground piping segments in the system:

One or more 

underground 

segments?

Safety 

Related?

Contains Licensed 

Radioactive 

Material?

Contains 

Environmentally 

Hazardous 

Material?

Subjected to Sec XI quarterly O&M flow tests?

Comments, 

including 

piping 

materials 

"C" or "O"

System 1 or blank 1,0 1,0 1,0 AL CU C* FE O* P S SS 1 2

3H

E 3 1,0

Predominant material on the exterior side of the piping. Enter "1" for all that apply

Piping Classes Enter a "1" for all that apply

Other Systems that may be Underground 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Access Corridors Environmental Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Admin. Bldg. Environmental Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Aux. Bldg. Environmental Control System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Boron Recycle System (PWR) 4 0 4 0 00 0 0 0 0 1 4 0 0 0 0 0 0Breathing Air System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Cask Decontamination System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Cntl. Bldg./Complex Environ. Cntl. Sys. 1 1 0 1 00 0 0 0 0 1 0 0 0 0 0 0 0Condensate Storage and Transfer System 10 2 10 0 0 0 0 1 0 0 8 4 0 1 0 0 0 0Condenser Tube Cleaning System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Condenser Vacuum System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Diesel Cooling Water System 1 1 0 1 00 0 0 0 0 0 1 0 0 0 1 0 0Diesel Generator Starting Air System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Emerg. Onsite Pwr. Supp. Bldg. Env. Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0EOF Environ. Control Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Feedwater Pump Injection and Misc. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Fuel Bldg. Environmental Control Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Fuel Pool Cooling and Purification System 4 1 4 1 00 0 0 0 0 0 4 0 0 0 0 0 0Gland Seal Water Supply System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Heat Rejection Chemical Treatment System 1 0 0 1 00 0 0 0 0 0 1 0 0 0 0 0 0Heat Rejection System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0HP Heater and MSR Drains and Vents System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Isolation Condenser System (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Laboratory Gas System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Leak Monitoring System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Low Pressure Core Spray System (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0LP Heater Drains and Vents System 1 0 1 0 00 0 0 0 0 1 0 0 0 0 0 0 0Lube Oil Storage and Transfer System 4 0 0 4 00 0 0 0 0 4 0 0 0 0 0 0 0Main Generator Gas Purge System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Main Generator Seal Oil System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Main Generator Stator Cooling System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Main Turbine Control Fluid System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Main Turbine System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Main/Reheat Steam System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Material and Eqipment Handling System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Miscellaneous Turbine Vents System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Plant Exhaust System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Pumping Station Environmental Cntl. Sys. 1 0 1 0 00 0 0 0 0 1 0 0 0 0 0 0 0Radwaste Bldg. Environmental Cntl. Sys. 1 0 1 0 00 0 0 0 0 0 1 0 0 0 0 0 0Reactor Bldg. Environmental Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Removable Chemical Cleaning System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Sampling and Water Quality System 6 0 6 0 00 0 0 0 2 2 2 0 0 0 0 0 0Security Bldg. Environmental Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Service Bldg. Environmental Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Shield Annulus Return and Exhaust System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Sludge Waste Dewatering System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Solid Waste Management System 2 0 2 0 00 0 0 0 0 0 2 0 0 0 0 0 0Standby Liquid Control System (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Steam Extraction System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Steam Generator Blowdown System (PWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Suppression Pool Makeup System (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Suppression Pool Purification Sys. (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Tech. Support Ctr. Environ. Cntl. Sys. 2 1 2 2 00 0 0 0 2 0 0 0 0 0 0 0 0Turbine Bldg. Environ. Cntl. Sys. 3 0 3 0 00 0 0 0 0 3 0 0 0 0 0 0 0Turbine Lube Oil System 2 0 0 2 00 0 0 0 0 2 0 0 0 0 0 0 0Turbine Steam Seal System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Ultimate Heat Sink System 21 9 12 4 0 1 13 0 2 0 7 1 0 2 0 5 0 0Visitors Center Environ. Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Water Treatment Bldg. Environ. Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0Welding Gas System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0
PWR Totals

SYSTEM DESIGN INFORMATION

For underground piping segments in the system:

One or more 

underground 

segments?

Safety 

Related?

Contains Licensed 

Radioactive 

Material?

Contains 

Environmentally 

Hazardous 

Material?

Subjected to Sec XI quarterly O&M flow tests?

Comments, 

including 

piping 

materials 

"C" or "O"

System 1 or blank 1,0 1,0 1,0 AL CU C* FE O* P S SS 1 2

3H

E 3 1,0

Predominant material on the exterior side of the piping. Enter "1" for all that apply

Piping Classes Enter a "1" for all that apply

Plant Specific Important Underground System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0

Containment Spray 5 5 3 0 00 0 0 0 0 0 5 0 1 0 4 2 0Primary Water Storage and Transfer 5 0 5 0 00 0 0 0 0 0 5 0 0 0 0 0 0Water Treatment Systems 4 0 0 4 00 0 0 3 4 0 0 0 0 0 0 0 0Miscellaneous Oil Systems 4 1 1 3 00 0 0 1 0 4 0 0 0 0 1 0 0Circulating Water System 16 4 9 3 0 1 7 0 3 0 11 0 0 0 0 3 0 0

AL CU C FE O P S SS

TOTALS 574 230 306 210 2 7 49 39 31 38 355 172 0 35 0 137 95
PWR Totals

SYSTEM 

For underground piping segments in the system:

System

Typical Underground SystemsAux./Emergency Feedwater System (PWR)Auxiliary Steam SystemCarbon Dioxide (CO2) Supply SystemChilled Water SystemClosed/Component Cooling Water System Cooling Tower BlowdownCondensate SystemCondensate Demineralizer SystemCondensate and Feedwater Chem. Cntl. Sys.CVC/Makeup and Purification Sys. (PWR)Demin. Water Storage and Transfer Sys.Diesel Fuel Oil SystemDiesel Lube Oil SystemEquipment and Floor Drains SystemEmergency/Standby Gas Treatment SystemEssential Service Water SystemEssential Air SystemFeedwater SystemFire Protection System (Water)Fire Protection System (Chemical)Fuel Oil Storage and Transfer SystemGaseous Waste Management System (PWR)High Pressure Core Spray System (BWR)HPSI System (PWR)Hydrogen Supply SystemHydrogen Water Chemistry SystemInstrument Air Supply SystemInsulating Oil SystemLiquid Waste Management SystemLube Oil SystemMain Generator Hydrogen Cooling SystemMakeup Demineralizer SystemNitrogen Supply SystemNonessential Service Water SystemOffgas System (BWR)Plant Hot Water SystemPotable Water Distribution SystemRaw Water Makeup SystemReactor Core Iso. Cooling Sys. (BWR)Sanitary Waste Processing SystemRHR/LPCI System (BWR)RHR/LPSI System (PWR)Service Air SystemSteam Generator Blowdown System (PWR)Turbine Drains and Misc. Piping Sys.Turbine Bldg. Closed Cooling Water SystemWastewater Disposal SystemYard Handling and Maintenance SystemWater Filtration System 

LEAKAGE EVENT INFORMATION 

Number 

of Events

Number 

of Events

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

0 000000000000 0 000000000000 0 000 0 000000001 010001000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000001 010000000010 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 1 010 0 000100002 020000000200 0 000000000000 1 010 0 010000000 000000000000 3 210001020000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 1 010 0 000000010 000000000000 0 000000000000 0 000 0 000000001 001000000100 0 000000000000 1 001 0 010000000 000000000000 0 000000000000 0 000 0 000000001 100001000000 3 120001000002 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000001 001000000100 1 010000010000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000001 010100000000 2 011100000100 1 010 1 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000001 010000000001 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 2 020 0 000000110 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 2 110 0 010001000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 2 110 0 000010010 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 00000000

2009

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

2007 2008
PWR Totals

SYSTEM 

For underground piping segments in the system:

System

Other Systems that may be UndergroundAccess Corridors Environmental Cntl. Sys.Admin. Bldg. Environmental Cntl. Sys.Aux. Bldg. Environmental Control SystemBoron Recycle System (PWR)Breathing Air SystemCask Decontamination SystemCntl. Bldg./Complex Environ. Cntl. Sys.Condensate Storage and Transfer SystemCondenser Tube Cleaning SystemCondenser Vacuum SystemDiesel Cooling Water SystemDiesel Generator Starting Air SystemEmerg. Onsite Pwr. Supp. Bldg. Env. Cntl. Sys.EOF Environ. Control Sys.Feedwater Pump Injection and Misc. Sys.Fuel Bldg. Environmental Control Sys.Fuel Pool Cooling and Purification SystemGland Seal Water Supply SystemHeat Rejection Chemical Treatment SystemHeat Rejection SystemHP Heater and MSR Drains and Vents SystemIsolation Condenser System (BWR)Laboratory Gas SystemLeak Monitoring SystemLow Pressure Core Spray System (BWR)LP Heater Drains and Vents SystemLube Oil Storage and Transfer SystemMain Generator Gas Purge SystemMain Generator Seal Oil SystemMain Generator Stator Cooling SystemMain Turbine Control Fluid SystemMain Turbine SystemMain/Reheat Steam SystemMaterial and Eqipment Handling SystemMiscellaneous Turbine Vents SystemPlant Exhaust SystemPumping Station Environmental Cntl. Sys.Radwaste Bldg. Environmental Cntl. Sys.Reactor Bldg. Environmental Cntl. Sys.Removable Chemical Cleaning SystemSampling and Water Quality SystemSecurity Bldg. Environmental Cntl. Sys.Service Bldg. Environmental Cntl. Sys.Shield Annulus Return and Exhaust SystemSludge Waste Dewatering SystemSolid Waste Management SystemStandby Liquid Control System (BWR)Steam Extraction SystemSteam Generator Blowdown System (PWR)Suppression Pool Makeup System (BWR)Suppression Pool Purification Sys. (BWR)Tech. Support Ctr. Environ. Cntl. Sys.Turbine Bldg. Environ. Cntl. Sys.Turbine Lube Oil SystemTurbine Steam Seal SystemUltimate Heat Sink SystemVisitors Center Environ. Cntl. Sys.Water Treatment Bldg. Environ. Cntl. Sys.Welding Gas System

LEAKAGE EVENT INFORMATION 

Number 

of Events

Number 

of Events

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

2009

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

2007 2008

0 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000001 001001000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 00000000
PWR Totals

SYSTEM 

For underground piping segments in the system:

System

Plant Specific Important Underground SystemContainment SprayPrimary Water Storage and TransferWater Treatment SystemsMiscellaneous Oil SystemsCirculating Water System

TOTALS

LEAKAGE EVENT INFORMATION 

Number 

of Events

Number 

of Events

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

2009

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

2007 2008

0 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 1 001 0 010000000 000000000000 0 000000000000 0 000 0 000000000 000000000000 0 000000000000 0 000 0 00000000

10 1 6 3 1 0 3 0 0 0 4 1 1 9 3 5 1 1 0 2 0 3 0 1 0 2 12 2 8 2 1 0 4 0 1 1 1 1 3
PWR Totals

SYSTEM 

For underground piping segments in the system:

System

Typical Underground SystemsAux./Emergency Feedwater System (PWR)Auxiliary Steam SystemCarbon Dioxide (CO2) Supply SystemChilled Water SystemClosed/Component Cooling Water System Cooling Tower BlowdownCondensate SystemCondensate Demineralizer SystemCondensate and Feedwater Chem. Cntl. Sys.CVC/Makeup and Purification Sys. (PWR)Demin. Water Storage and Transfer Sys.Diesel Fuel Oil SystemDiesel Lube Oil SystemEquipment and Floor Drains SystemEmergency/Standby Gas Treatment SystemEssential Service Water SystemEssential Air SystemFeedwater SystemFire Protection System (Water)Fire Protection System (Chemical)Fuel Oil Storage and Transfer SystemGaseous Waste Management System (PWR)High Pressure Core Spray System (BWR)HPSI System (PWR)Hydrogen Supply SystemHydrogen Water Chemistry SystemInstrument Air Supply SystemInsulating Oil SystemLiquid Waste Management SystemLube Oil SystemMain Generator Hydrogen Cooling SystemMakeup Demineralizer SystemNitrogen Supply SystemNonessential Service Water SystemOffgas System (BWR)Plant Hot Water SystemPotable Water Distribution SystemRaw Water Makeup SystemReactor Core Iso. Cooling Sys. (BWR)Sanitary Waste Processing SystemRHR/LPCI System (BWR)RHR/LPSI System (PWR)Service Air SystemSteam Generator Blowdown System (PWR)Turbine Drains and Misc. Piping Sys.Turbine Bldg. Closed Cooling Water SystemWastewater Disposal SystemYard Handling and Maintenance SystemWater Filtration System 

Number 

of Events

Total 

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

0 000000000000 00 000000000000 11 10 000000000000 00 000000000000 01 010000000010 22 20 000000000000 11 10 000000000000 33 1 21 010000010000 4 22 1 30 000000000000 00 000000000000 00 000000000000 01 010000000100 2 2 110 000000000000 01 010000000010 3 12 1 110 000000000000 05 221011001002 9 441 13 1 40 000000000000 00 000000000000 02 002000000200 4 13 1 30 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 01 001000000100 11 10 000000000000 01 010001000000 11 10 000000000000 01 010000010000 5 413 1 10 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 11 10 000000000000 00 000000000000 00 000000000000 01 010000010000 3 3 1 110 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 01 010001000000 3 12 2 10 000000000000 00 000000000000 03 120001001001 5 23 1 2 20 000000000000 00 000000000000 00 000000000000

2010 LEAK TOTALS

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak
PWR Totals

SYSTEM 

For underground piping segments in the system:

System

Other Systems that may be UndergroundAccess Corridors Environmental Cntl. Sys.Admin. Bldg. Environmental Cntl. Sys.Aux. Bldg. Environmental Control SystemBoron Recycle System (PWR)Breathing Air SystemCask Decontamination SystemCntl. Bldg./Complex Environ. Cntl. Sys.Condensate Storage and Transfer SystemCondenser Tube Cleaning SystemCondenser Vacuum SystemDiesel Cooling Water SystemDiesel Generator Starting Air SystemEmerg. Onsite Pwr. Supp. Bldg. Env. Cntl. Sys.EOF Environ. Control Sys.Feedwater Pump Injection and Misc. Sys.Fuel Bldg. Environmental Control Sys.Fuel Pool Cooling and Purification SystemGland Seal Water Supply SystemHeat Rejection Chemical Treatment SystemHeat Rejection SystemHP Heater and MSR Drains and Vents SystemIsolation Condenser System (BWR)Laboratory Gas SystemLeak Monitoring SystemLow Pressure Core Spray System (BWR)LP Heater Drains and Vents SystemLube Oil Storage and Transfer SystemMain Generator Gas Purge SystemMain Generator Seal Oil SystemMain Generator Stator Cooling SystemMain Turbine Control Fluid SystemMain Turbine SystemMain/Reheat Steam SystemMaterial and Eqipment Handling SystemMiscellaneous Turbine Vents SystemPlant Exhaust SystemPumping Station Environmental Cntl. Sys.Radwaste Bldg. Environmental Cntl. Sys.Reactor Bldg. Environmental Cntl. Sys.Removable Chemical Cleaning SystemSampling and Water Quality SystemSecurity Bldg. Environmental Cntl. Sys.Service Bldg. Environmental Cntl. Sys.Shield Annulus Return and Exhaust SystemSludge Waste Dewatering SystemSolid Waste Management SystemStandby Liquid Control System (BWR)Steam Extraction SystemSteam Generator Blowdown System (PWR)Suppression Pool Makeup System (BWR)Suppression Pool Purification Sys. (BWR)Tech. Support Ctr. Environ. Cntl. Sys.Turbine Bldg. Environ. Cntl. Sys.Turbine Lube Oil SystemTurbine Steam Seal SystemUltimate Heat Sink SystemVisitors Center Environ. Cntl. Sys.Water Treatment Bldg. Environ. Cntl. Sys.Welding Gas System

Number 

of Events

Total 

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

2010 LEAK TOTALS

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

0 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 1 110 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 0

0 000000000000 01 001000000100 11 10 000000000000 00 000000000000 00 000000000000 01 001000010000 11 10 000000000000 00 000000000000 00 000000000000 00 000000000000
PWR Totals

SYSTEM 

For underground piping segments in the system:

System

Plant Specific Important Underground SystemContainment SprayPrimary Water Storage and TransferWater Treatment SystemsMiscellaneous Oil SystemsCirculating Water System

TOTALS

Number 

of Events

Total 

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

2010 LEAK TOTALS

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

0 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 1 110 000000000000 01 001000000100 11 1

22 3 12 7 0 1 4 0 4 2 6 2 3 53 9 31 13 3 1 13 0 8 3 12 4 9
Overall Totals

SYSTEM DESIGN INFORMATION 

For underground piping segments in the system:

One or more 

underground 

segments?

Safety 

Related?

Contains 

Licensed 

Radioactive 

Material?

Contains 

Environmentally 

Hazardous 

Material?

Subjected to Sec XI quarterly O&M flow tests?

Comments, including piping mat

or "O"

System 1 or blank 1,0 1,0 1,0 AL CU C* FE O* P S SS 1 2 3HE 3 1,0

Typical Underground SystemsAux./Emergency Feedwater System (PWR) 28 22 12 3 0 0 1 0 0 0 17 13 0 0 0 18 12Auxiliary Steam System 12 1 11 0 0 0 1 2 0 0 9 0 0 0 0 1 0Carbon Dioxide (CO2) Supply System 1 0 0 1 00 0 0 0 0 1 1 0 0 0 0 0Chilled Water System 4 0 4 0 00 0 0 0 0 3 1 0 0 0 0 0Closed/Component Cooling Water System 7 2 5 0 00 1 0 0 0 5 0 0 0 0 2 1Cooling Tower Blowdown 12 0 10 6 0 0 2 0 4 2 5 1 0 0 0 0 0Condensate System 39 10 37 5 2 0 2 4 0 0 24 18 0 1 0 8 10Condensate Demineralizer System 14 1 9 5 0 0 0 0 3 1 8 3 0 0 0 1 1Condensate and Feedwater Chem. Cntl. Sys. 10 0 3 10 0 0 0 3 0 1 6 7 0 0 0 0 0CVC/Makeup and Purification Sys. (PWR) 10 6 9 1 0 0 0 0 0 0 1 9 0 6 0 3 6Demin. Water Storage and Transfer Sys. 4 0 4 0 00 0 0 0 0 4 2 0 0 0 0 0Diesel Fuel Oil System 86 62 1 81 0 0 2 8 2 0 69 9 0 2 0 27 10Diesel Lube Oil System 11 4 0 11 0 0 1 3 0 0 7 0 0 0 0 0 0Equipment and Floor Drains System 29 0 23 15 0 1 3 9 6 4 19 12 0 1 0 1 0Emergency/Standby Gas Treatment System 13 9 10 0 1 0 0 0 0 0 12 0 0 1 0 1 1Essential Service Water System 86 86 10 11 2 4 9 9 1 1 71 11 0 3 0 76 62Essential Air System 2 2 0 0 00 0 0 0 0 1 1 0 0 0 0 0Feedwater System 6 0 6 1 00 0 0 0 0 4 4 0 0 0 0 0Fire Protection System (Water) 9 6 0 1 00 2 8 0 3 4 0 0 0 0 2 0Fire Protection System (Chemical) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Fuel Oil Storage and Transfer System 53 16 4 53 0 1 3 8 2 4 41 3 0 0 0 6 4Gaseous Waste Management System (PWR) 6 1 6 0 00 0 0 0 0 6 1 0 0 0 1 0High Pressure Core Spray System (BWR) 9 7 8 3 10 0 0 0 0 2 7 0 2 0 3 5HPSI System (PWR) 7 7 7 0 00 0 0 0 0 0 7 0 5 0 0 7Hydrogen Supply System 15 1 0 12 0 0 1 0 0 0 11 4 0 0 0 0 0Hydrogen Water Chemistry System 3 1 0 2 00 0 0 0 0 4 0 0 0 0 0 0Instrument Air Supply System 7 6 0 0 01 0 0 0 0 6 0 0 2 0 0 0Insulating Oil System 2 0 1 0 00 0 0 0 0 1 1 0 0 0 0 0Liquid Waste Management System 65 7 61 17 0 0 0 0 6 3 30 36 0 2 0 0 0Lube Oil System 17 0 1 17 0 0 0 4 0 0 13 0 0 0 0 0 1Main Generator Hydrogen Cooling System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Makeup Demineralizer System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Nitrogen Supply System 1 0 0 1 00 0 0 0 0 1 0 0 0 0 0 0Nonessential Service Water System 18 5 10 7 0 2 4 0 3 2 14 0 0 0 0 1 4Offgas System (BWR) 19 6 16 6 0 1 0 3 0 0 16 2 0 0 0 2 0Plant Hot Water System 4 0 4 0 00 0 0 0 0 4 0 0 0 0 0 0Potable Water Distribution System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Raw Water Makeup System 6 4 0 2 00 0 0 0 0 5 1 0 0 0 4 1Reactor Core Iso. Cooling Sys. (BWR) 7 6 6 3 00 0 0 0 0 0 7 0 3 0 3 3Sanitary Waste Processing System 9 0 1 8 00 0 6 2 4 3 1 0 0 0 0 0RHR/LPCI System (BWR) 6 2 5 2 00 0 1 0 0 3 2 0 0 0 1 1RHR/LPSI System (PWR) 12 10 12 0 0 0 0 0 0 0 0 12 0 10 0 4 7Service Air System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Steam Generator Blowdown System (PWR) 18 7 15 3 0 0 0 0 1 2 15 1 0 0 0 0 0Turbine Drains and Misc. Piping Sys. 9 0 8 2 00 1 0 0 0 6 2 0 0 0 0 0Turbine Bldg. Closed Cooling Water System 2 0 2 0 00 0 0 0 0 2 0 0 0 0 0 0Wastewater Disposal System 18 2 14 10 0 0 0 5 3 7 10 2 0 0 0 0 0Yard Handling and Maintenance System 16 0 16 1 0 0 3 4 2 5 11 1 0 0 0 0 0Water Filtration System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0

Predominant material on the exterior side of the piping. Enter "1" for all that apply

Piping Classes Enter a "1" for all that apply
Overall Totals

SYSTEM DESIGN INFORMATION 

For underground piping segments in the system:

One or more 

underground 

segments?

Safety 

Related?

Contains 

Licensed 

Radioactive 

Material?

Contains 

Environmentally 

Hazardous 

Material?

Subjected to Sec XI quarterly O&M flow tests?

Comments, including piping mat

or "O"

System 1 or blank 1,0 1,0 1,0 AL CU C* FE O* P S SS 1 2 3HE 3 1,0

Predominant material on the exterior side of the piping. Enter "1" for all that apply

Piping Classes Enter a "1" for all that apply

Other Systems that may be Underground 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Access Corridors Environmental Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Admin. Bldg. Environmental Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Aux. Bldg. Environmental Control System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Boron Recycle System (PWR) 4 0 4 0 00 0 0 0 0 1 4 0 0 0 0 0Breathing Air System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Cask Decontamination System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Cntl. Bldg./Complex Environ. Cntl. Sys. 2 2 0 1 00 0 0 0 0 2 0 0 0 0 1 0Condensate Storage and Transfer System 31 9 30 5 1 0 0 1 0 0 21 19 0 5 0 2 3Condenser Tube Cleaning System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Condenser Vacuum System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Diesel Cooling Water System 5 5 0 1 00 0 0 0 2 4 1 0 0 0 3 2Diesel Generator Starting Air System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Emerg. Onsite Pwr. Supp. Bldg. Env. Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0EOF Environ. Control Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Feedwater Pump Injection and Misc. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Fuel Bldg. Environmental Control Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Fuel Pool Cooling and Purification System 7 1 7 1 10 0 0 0 0 2 5 0 0 0 0 0Gland Seal Water Supply System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Heat Rejection Chemical Treatment System 1 0 0 1 00 0 0 0 0 0 1 0 0 0 0 0Heat Rejection System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0HP Heater and MSR Drains and Vents System 1 0 1 0 00 0 0 0 0 1 0 0 0 0 0 0Isolation Condenser System (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Laboratory Gas System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Leak Monitoring System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Low Pressure Core Spray System (BWR) 4 4 4 1 00 0 0 0 0 2 2 0 1 0 0 1LP Heater Drains and Vents System 1 0 1 0 00 0 0 0 0 1 0 0 0 0 0 0Lube Oil Storage and Transfer System 14 0 3 14 0 0 0 6 0 0 8 0 0 0 0 0 0Main Generator Gas Purge System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Main Generator Seal Oil System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Main Generator Stator Cooling System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Main Turbine Control Fluid System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Main Turbine System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Main/Reheat Steam System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Material and Eqipment Handling System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Miscellaneous Turbine Vents System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Plant Exhaust System 4 0 4 0 10 3 0 0 0 0 0 0 0 0 0 0Pumping Station Environmental Cntl. Sys. 1 0 1 0 00 0 0 0 0 1 0 0 0 0 0 0Radwaste Bldg. Environmental Cntl. Sys. 1 0 1 0 00 0 0 0 0 0 1 0 0 0 0 0Reactor Bldg. Environmental Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Removable Chemical Cleaning System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Sampling and Water Quality System 7 0 6 1 00 0 0 0 2 3 2 0 0 0 0 0Security Bldg. Environmental Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Service Bldg. Environmental Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Shield Annulus Return and Exhaust System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Sludge Waste Dewatering System 1 0 1 0 00 0 0 0 0 1 0 0 0 0 0 0Solid Waste Management System 2 0 2 0 00 0 0 0 0 0 2 0 0 0 0 0Standby Liquid Control System (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Steam Extraction System 3 0 3 0 00 0 0 0 0 3 1 0 0 0 0 0Steam Generator Blowdown System (PWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Suppression Pool Makeup System (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Suppression Pool Purification Sys. (BWR) 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Tech. Support Ctr. Environ. Cntl. Sys. 3 1 2 3 00 0 0 0 2 1 0 0 0 0 0 0Turbine Bldg. Environ. Cntl. Sys. 3 0 3 0 00 0 0 0 0 3 0 0 0 0 0 0Turbine Lube Oil System 5 0 0 5 00 0 3 0 0 2 0 0 0 0 0 0Turbine Steam Seal System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Ultimate Heat Sink System 26 9 14 7 0 1 16 0 2 0 11 1 0 2 0 5 0Visitors Center Environ. Cntl. Sys. 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0Water Treatment Bldg. Environ. Cntl. Sys. 1 0 0 1 00 0 0 0 1 0 1 0 0 0 0 0Welding Gas System 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0
Overall Totals

SYSTEM DESIGN INFORMATION 

For underground piping segments in the system:

One or more 

underground 

segments?

Safety 

Related?

Contains 

Licensed 

Radioactive 

Material?

Contains 

Environmentally 

Hazardous 

Material?

Subjected to Sec XI quarterly O&M flow tests?

Comments, including piping mat

or "O"

System 1 or blank 1,0 1,0 1,0 AL CU C* FE O* P S SS 1 2 3HE 3 1,0

Predominant material on the exterior side of the piping. Enter "1" for all that apply

Piping Classes Enter a "1" for all that apply

Plant Specific Important Underground Systems 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0

Containment Spray 5 5 3 0 00 0 0 0 0 0 5 0 1 0 4 2Primary Water Storage and Transfer 5 0 5 0 00 0 0 0 0 0 5 0 0 0 0 0Water Treatment Systems 8 0 0 8 00 0 0 3 8 0 0 0 0 0 0 0Miscellaneous Oil Systems 5 1 1 4 00 0 1 1 0 4 0 0 0 0 1 0Circulating Water System 16 4 9 3 0 1 7 0 3 0 11 0 0 0 0 3 0

AL CU C FE O P S SS

TOTALS 878 340 456 356 9 12 62 88 44 54 556 232 0 47 0 184 144
Overall Totals

SYSTEM 

For underground piping segments in the system:

System

Typical Underground SystemsAux./Emergency Feedwater System (PWR)Auxiliary Steam SystemCarbon Dioxide (CO2) Supply SystemChilled Water SystemClosed/Component Cooling Water System Cooling Tower BlowdownCondensate SystemCondensate Demineralizer SystemCondensate and Feedwater Chem. Cntl. Sys.CVC/Makeup and Purification Sys. (PWR)Demin. Water Storage and Transfer Sys.Diesel Fuel Oil SystemDiesel Lube Oil SystemEquipment and Floor Drains SystemEmergency/Standby Gas Treatment SystemEssential Service Water SystemEssential Air SystemFeedwater SystemFire Protection System (Water)Fire Protection System (Chemical)Fuel Oil Storage and Transfer SystemGaseous Waste Management System (PWR)High Pressure Core Spray System (BWR)HPSI System (PWR)Hydrogen Supply SystemHydrogen Water Chemistry SystemInstrument Air Supply SystemInsulating Oil SystemLiquid Waste Management SystemLube Oil SystemMain Generator Hydrogen Cooling SystemMakeup Demineralizer SystemNitrogen Supply SystemNonessential Service Water SystemOffgas System (BWR)Plant Hot Water SystemPotable Water Distribution SystemRaw Water Makeup SystemReactor Core Iso. Cooling Sys. (BWR)Sanitary Waste Processing SystemRHR/LPCI System (BWR)RHR/LPSI System (PWR)Service Air SystemSteam Generator Blowdown System (PWR)Turbine Drains and Misc. Piping Sys.Turbine Bldg. Closed Cooling Water SystemWastewater Disposal SystemYard Handling and Maintenance SystemWater Filtration System 

LEAKAGE EVENT INFORMATION 

Number 

of Events

Number 

of 

Events

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

0 000000000000 0 000000000000 0 00000000001 010001000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000001 010000000010 0 000000000000 0 00000000000 000000000000 0 000000000000 1 01000001002 020000000200 0 000000000000 4 04002100000 000000000000 3 210001020000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 1 01000000000 000000000000 0 000000000000 0 00000000001 001000000100 0 000000000000 2 01101100000 000000000000 0 000000000000 0 00000000001 100001000000 5 131001010102 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000001 001000000100 1 010000010000 1 00100001000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000001 010100000000 3 111100000101 1 01010000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000001 010000000001 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 2 02000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 1 100000000100 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 2 11000100010 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 2 11000000100 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 0000000000

2009

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for t

applicable cause of each 

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

2007 2008
Overall Totals

SYSTEM 

For underground piping segments in the system:

System

Other Systems that may be UndergroundAccess Corridors Environmental Cntl. Sys.Admin. Bldg. Environmental Cntl. Sys.Aux. Bldg. Environmental Control SystemBoron Recycle System (PWR)Breathing Air SystemCask Decontamination SystemCntl. Bldg./Complex Environ. Cntl. Sys.Condensate Storage and Transfer SystemCondenser Tube Cleaning SystemCondenser Vacuum SystemDiesel Cooling Water SystemDiesel Generator Starting Air SystemEmerg. Onsite Pwr. Supp. Bldg. Env. Cntl. Sys.EOF Environ. Control Sys.Feedwater Pump Injection and Misc. Sys.Fuel Bldg. Environmental Control Sys.Fuel Pool Cooling and Purification SystemGland Seal Water Supply SystemHeat Rejection Chemical Treatment SystemHeat Rejection SystemHP Heater and MSR Drains and Vents SystemIsolation Condenser System (BWR)Laboratory Gas SystemLeak Monitoring SystemLow Pressure Core Spray System (BWR)LP Heater Drains and Vents SystemLube Oil Storage and Transfer SystemMain Generator Gas Purge SystemMain Generator Seal Oil SystemMain Generator Stator Cooling SystemMain Turbine Control Fluid SystemMain Turbine SystemMain/Reheat Steam SystemMaterial and Eqipment Handling SystemMiscellaneous Turbine Vents SystemPlant Exhaust SystemPumping Station Environmental Cntl. Sys.Radwaste Bldg. Environmental Cntl. Sys.Reactor Bldg. Environmental Cntl. Sys.Removable Chemical Cleaning SystemSampling and Water Quality SystemSecurity Bldg. Environmental Cntl. Sys.Service Bldg. Environmental Cntl. Sys.Shield Annulus Return and Exhaust SystemSludge Waste Dewatering SystemSolid Waste Management SystemStandby Liquid Control System (BWR)Steam Extraction SystemSteam Generator Blowdown System (PWR)Suppression Pool Makeup System (BWR)Suppression Pool Purification Sys. (BWR)Tech. Support Ctr. Environ. Cntl. Sys.Turbine Bldg. Environ. Cntl. Sys.Turbine Lube Oil SystemTurbine Steam Seal SystemUltimate Heat Sink SystemVisitors Center Environ. Cntl. Sys.Water Treatment Bldg. Environ. Cntl. Sys.Welding Gas System

LEAKAGE EVENT INFORMATION 

Number 

of Events

Number 

of 

Events

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

2009

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for t

applicable cause of each 

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

2007 2008

0 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000001 001001000000 0 000000000000 2 02002000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000001 010000010000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 0000000000
Overall Totals

SYSTEM 

For underground piping segments in the system:

System

Plant Specific Important Underground SystemsContainment SprayPrimary Water Storage and TransferWater Treatment SystemsMiscellaneous Oil SystemsCirculating Water System

TOTALS

LEAKAGE EVENT INFORMATION 

Number 

of Events

Number 

of 

Events

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

2009

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for t

applicable cause of each 

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

2007 2008

0 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 1 00100100000 000000000000 0 000000000000 0 00000000000 000000000000 0 000000000000 0 0000000000

11 1 7 3 1 0 3 0 1 0 4 1 1 13 5 6 2 1 0 2 0 4 0 3 0 3 19 2 14 3 1 5 4 0 2 1 1 
Overall Totals

SYSTEM 

For underground piping segments in the system:

System

Typical Underground SystemsAux./Emergency Feedwater System (PWR)Auxiliary Steam SystemCarbon Dioxide (CO2) Supply SystemChilled Water SystemClosed/Component Cooling Water System Cooling Tower BlowdownCondensate SystemCondensate Demineralizer SystemCondensate and Feedwater Chem. Cntl. Sys.CVC/Makeup and Purification Sys. (PWR)Demin. Water Storage and Transfer Sys.Diesel Fuel Oil SystemDiesel Lube Oil SystemEquipment and Floor Drains SystemEmergency/Standby Gas Treatment SystemEssential Service Water SystemEssential Air SystemFeedwater SystemFire Protection System (Water)Fire Protection System (Chemical)Fuel Oil Storage and Transfer SystemGaseous Waste Management System (PWR)High Pressure Core Spray System (BWR)HPSI System (PWR)Hydrogen Supply SystemHydrogen Water Chemistry SystemInstrument Air Supply SystemInsulating Oil SystemLiquid Waste Management SystemLube Oil SystemMain Generator Hydrogen Cooling SystemMakeup Demineralizer SystemNitrogen Supply SystemNonessential Service Water SystemOffgas System (BWR)Plant Hot Water SystemPotable Water Distribution SystemRaw Water Makeup SystemReactor Core Iso. Cooling Sys. (BWR)Sanitary Waste Processing SystemRHR/LPCI System (BWR)RHR/LPSI System (PWR)Service Air SystemSteam Generator Blowdown System (PWR)Turbine Drains and Misc. Piping Sys.Turbine Bldg. Closed Cooling Water SystemWastewater Disposal SystemYard Handling and Maintenance SystemWater Filtration System 

Number 

of 

Events

Total 

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

0 000000000000 00 000000000000 11 10 000000000000 00 000000000000 01 010000000010 22 20 000000000000 11 11 001000000100 7 61 21 3 11 010000010000 4 22 1 30 000000000000 00 000000000000 00 000000000000 01 010000000100 2 2 110 000000000000 02 020000000020 5 32 11 120 000000000000 07 322011001013 13 5 5 3 1 3 1 1 1 1 50 000000000000 00 000000000000 07 007000050200 10 1 9 7 30 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 01 001000000100 11 10 000000000000 01 010001000000 11 10 000000000000 01 010000010000 6 1413 1 1 10 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 11 13 201000000300 32 1 30 000000000000 00 000000000000 01 010000010000 3 3 1 110 000000000000 00 000000000000 00 000000000000 11 10 000000000000 00 000000000000 01 010001000000 3 12 2 10 000000000000 00 000000000000 03 120001001001 5 23 1 2 20 000000000000 00 000000000000 0

2010 LEAK TOTALS

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak
Overall Totals

SYSTEM 

For underground piping segments in the system:

System

Other Systems that may be UndergroundAccess Corridors Environmental Cntl. Sys.Admin. Bldg. Environmental Cntl. Sys.Aux. Bldg. Environmental Control SystemBoron Recycle System (PWR)Breathing Air SystemCask Decontamination SystemCntl. Bldg./Complex Environ. Cntl. Sys.Condensate Storage and Transfer SystemCondenser Tube Cleaning SystemCondenser Vacuum SystemDiesel Cooling Water SystemDiesel Generator Starting Air SystemEmerg. Onsite Pwr. Supp. Bldg. Env. Cntl. Sys.EOF Environ. Control Sys.Feedwater Pump Injection and Misc. Sys.Fuel Bldg. Environmental Control Sys.Fuel Pool Cooling and Purification SystemGland Seal Water Supply SystemHeat Rejection Chemical Treatment SystemHeat Rejection SystemHP Heater and MSR Drains and Vents SystemIsolation Condenser System (BWR)Laboratory Gas SystemLeak Monitoring SystemLow Pressure Core Spray System (BWR)LP Heater Drains and Vents SystemLube Oil Storage and Transfer SystemMain Generator Gas Purge SystemMain Generator Seal Oil SystemMain Generator Stator Cooling SystemMain Turbine Control Fluid SystemMain Turbine SystemMain/Reheat Steam SystemMaterial and Eqipment Handling SystemMiscellaneous Turbine Vents SystemPlant Exhaust SystemPumping Station Environmental Cntl. Sys.Radwaste Bldg. Environmental Cntl. Sys.Reactor Bldg. Environmental Cntl. Sys.Removable Chemical Cleaning SystemSampling and Water Quality SystemSecurity Bldg. Environmental Cntl. Sys.Service Bldg. Environmental Cntl. Sys.Shield Annulus Return and Exhaust SystemSludge Waste Dewatering SystemSolid Waste Management SystemStandby Liquid Control System (BWR)Steam Extraction SystemSteam Generator Blowdown System (PWR)Suppression Pool Makeup System (BWR)Suppression Pool Purification Sys. (BWR)Tech. Support Ctr. Environ. Cntl. Sys.Turbine Bldg. Environ. Cntl. Sys.Turbine Lube Oil SystemTurbine Steam Seal SystemUltimate Heat Sink SystemVisitors Center Environ. Cntl. Sys.Water Treatment Bldg. Environ. Cntl. Sys.Welding Gas System

Number 

of 

Events

Total 

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

2010 LEAK TOTALS

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

0 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 3 21 210 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 01 001000000100 11 10 000000000000 00 000000000000 00 000000000000 01 001000010000 11 10 000000000000 01 001000010000 2 11 20 000000000000 0
Overall Totals

SYSTEM 

For underground piping segments in the system:

System

Plant Specific Important Underground SystemsContainment SprayPrimary Water Storage and TransferWater Treatment SystemsMiscellaneous Oil SystemsCirculating Water System

TOTALS

Number 

of 

Events

Total 

Number 

of Events

ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit ID OD ? Crk

Gal

GC

Lea

Mec

MIC O

Ovd

Pit

2010 LEAK TOTALS

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

Cause Codes, Enter "1" for the most 

applicable cause of each leak

Initiation, 

Enter a "1" 

for the 

initiator of 

each leak

0 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 00 000000000000 1 110 000000000000 01 001000000100 11 1

35 6 13 16 0 1 4 0 10 2 10 4 4 78 14 40 24 3 6 13 0 17 3 18 6 12
0

102030405060708090

100

Diesel Fuel Oil System

Essential Service Water System

Liquid Waste Management System

Fuel Oil Storage and Transfer System

Condensate System

Condensate Storage and Transfer System

Equipment and Floor Drains System

Aux./Emergency Feedwater System (PWR)

Ultimate Heat Sink System

Offgas System (BWR)

Nonessential Service Water System

Steam Generator Blowdown System (PWR)

Wastewater Disposal System

Lube Oil System

Yard Handling and Maintenance System

Circulating Water System

Hydrogen Supply System

Condensate Demineralizer System

Lube Oil Storage and Transfer System

Emergency/Standby Gas Treatment System

Auxiliary Steam System

Cooling Tower Blowdown

RHR/LPSI System (PWR)

Diesel Lube Oil System

Condensate and Feedwater Chem. Cntl. Sys.

CVC/Makeup and Purification Sys. (PWR)

Fire Protection System (Water)

High Pressure Core Spray System (BWR)

Sanitary Waste Processing System

Turbine Drains and Misc. Piping Sys.

Water Treatment Systems

Closed/Component Cooling Water System 

HPSI System (PWR)

Instrument Air Supply System

Reactor Core Iso. Cooling Sys. (BWR)

Fuel Pool Cooling and Purification System

Sampling and Water Quality System

Feedwater System

Gaseous Waste Management System (PWR)

Raw Water Makeup System

RHR/LPCI System (BWR)

Diesel Cooling Water System

Turbine Lube Oil System

Containment Spray

Primary Water Storage and Transfer

Miscellaneous Oil Systems

Chilled Water System

Demin. Water Storage and Transfer Sys.

Plant Hot Water System

Boron Recycle System (PWR)

Low Pressure Core Spray System (BWR)

Plant Exhaust System

Hydrogen Water Chemistry System

Steam Extraction System

Tech. Support Ctr. Environ. Cntl. Sys.

Turbine Bldg. Environ. Cntl. Sys.

Essential Air System

Insulating Oil System

Turbine Bldg. Closed Cooling Water System

Cntl. Bldg./Complex Environ. Cntl. Sys.

Solid Waste Management System

Carbon Dioxide (CO2) Supply System

l

Fig. 1: Buried Piping by System

40

5060708090

100

Fig. 2: Buried Systems and Leakage

0

102030

Essential Service Water System

Diesel Fuel Oil System

Liquid Waste Management System

Fuel Oil Storage and Transfer System

Condensate System

Condensate Storage and Transfer System

Equipment and Floor Drains System

Aux./Emergency Feedwater System (PWR)

Ultimate Heat Sink System

Offgas System (BWR)

Wastewater Disposal System

Steam Generator Blowdown System (PWR)

Nonessential Service Water System

Lube Oil System

Circulating Water System

Yard Handling and Maintenance System

Hydrogen Supply System

Condensate Demineralizer System

Lube Oil Storage and Transfer System

Emergency/Standby Gas Treatment System

Auxiliary Steam System

Cooling Tower Blowdown

RHR/LPSI System (PWR)

Diesel Lube Oil System

Condensate and Feedwater Chem. Cntl. Sys.

CVC/Makeup and Purification Sys. (PWR)

Fire Protection System (Water)

High Pressure Core Spray System (BWR)

Sanitary Waste Processing System

Turbine Drains and Misc. Piping Sys.

Water Treatment Systems

Closed/Component Cooling Water System 

Instrument Air Supply System

HPSI System (PWR)

Reactor Core Iso. Cooling Sys. (BWR)

Fuel Pool Cooling and Purification System

Sampling and Water Quality System

Raw Water Makeup System

RHR/LPCI System (BWR)

Feedwater System

Gaseous Waste Management System (PWR)

Diesel Cooling Water System

Turbine Lube Oil System

Containment Spray

Primary Water Storage and Transfer

Miscellaneous Oil Systems

Chilled Water System

Demin. Water Storage and Transfer Sys.

Plant Hot Water System

Boron Recycle System (PWR)

Low Pressure Core Spray System (BWR)

Plant Exhaust System

Tech. Support Ctr. Environ. Cntl. Sys.

Hydrogen Water Chemistry System

Steam Extraction System

Turbine Bldg. Environ. Cntl. Sys.

Essential Air System

Insulating Oil System

Turbine Bldg. Closed Cooling Water System

Cntl. Bldg./Complex Environ. Cntl. Sys.

Solid Waste Management System

Water Treatment Bldg. Environ. Cntl. Sys.

CbDiid(CO2) SlSt
0.00

0.501.001.502.002.50

Water Treatment Bldg. Environ. ...

Fire Protection System (Water)

Raw Water Makeup System

Tech. Support Ctr. Environ. Cntl. Sys.

Condensate Demineralizer System

Wastewater Disposal System

Condensate System

Equipment and Floor Drains System

Steam Generator Blowdown 

...

RHR/LPCI System (BWR)

Offgas System (BWR)

Essential Service Water System

Instrument Air Supply System

Water Treatment Systems

Condensate Storage and Transfer 

...

Liquid Waste Management System

Auxiliary Steam System

Cooling Tower Blowdown

Hydrogen Supply System

Circulating Water System

Nonessential Service Water System

Ultimate Heat Sink System

Diesel Fuel Oil System

Fig. 3: Ratio of Leaks to Buried Systems 

Ratio of Leaks to Buried
0

100200300400500600

AL CU C FE O P S SS

Fig, 4: Piping Materials

PWRBWR

0

50

100150200250300350400450500

SR Rad Haz

Fig. 5: Importance Category

PWRBWR

02468

101214

2007 2008 2009 2010

Fig. 6: BWR Leakage Causes

PITOVDOMICMECLEAGCGALCRK

05

10152025

2007 2008 2009 2010

Fig. 7: PWR Leakage Causes

PITOVDOMICMECLEAGCGALCRK
0

5

10152025303540

2007 2008 2009 2010

Fig. 8: Total Leakage Causes

PITOVDOMICMECLEAGCGALCRK

3540

Fig. 9: BWR-PWR Leakage Events

05

1015202530

35

2007 2008 2009 2010

g g

PWRBWR