Exelon Underground Pipe & Tank

Program (UPTI)

October 15, 2014

Project Engineer: Greg Lupia

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Exelon Nuclear Sites

Exelon has 22 operating nuclear units light water PWRs and

BWRs, and manages Fort Calhoun Nuclear Plant.

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Site Unit Year Reactor Site Unit Year Reactor Byron 1 1985 PWR Limerick 1 1986 BWR

Byron 2 1987 PWR Limerick 2 1990 BWR

Braidwood 1 1988 PWR Nine Mile Point 1 1970 BWR

Braidwood 2 1988 PWR Nine Mile Point 2 1988 BWR

Calvert Cliffs 1 1975 PWR Oyater Creek 1 1969 BWR

Calvert Cliffs 2 1977 PWR

Peach Bottom

(Decom) 1 1967 Helium Cooled

Clinton 1 1987 BWR Peach Bottom 2 1974 BWR

Dresden (Decom) 1 1960 Peach Bottom 3 1974 BWR

Dresden 2 1970 BWR Quad Cities 1 1973 BWR

Dresden 3 1971 BWR Quad Cities 2 1973 BWR

LaSalle 1 1984 BWR Ginna 1 1970 PWR

LaSalle 2 1984 BWR Three Mile Island 1 1974 PWR

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UPTI Program Goals

The goal of the UPTI program is to provide reasonable assurance

of leakage integrity and structural integrity.

• No plant shutdowns (safety related leaks)

• No non-permitted environmental releases

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UPTI Program Basis (NACE 0502)

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UPTI Program Inspection Plans

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Exelon program includes both ID corrosion for raw water piping and OD corrosion for buried pipe

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UPTI Program Health Indicators

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BRW BYR CAL CPS DRE FCS GIN LAS LIM NMP OYS PEA QDC TMI Corp

Overall Buried Pipe/

Raw Water Corrosion

W Y W G Y W W W W Y W W G W

Personnel W W G G G W W G W R W G G

Infrastructure W W G G Y W W G W W W G G

Implementation G Y G G W W W G G G W G G

Equipment Y Y Y W R W W Y G G Y Y W

UPTI Future Budget / Planning 2014 & Beyond *

1. Each site completes Asset Management plan (final NEI 09-14 milestone

12/31/14)

• Draft Tech Eval. 9/15/14, complete 10/3/14

• Draft Asset Mgt. plan 11/14/14, complete 12/4/14

• Incorporate the NEI Asset management plan into existing LTAM process 1

• Future inspections will be incorporated into the Buried Pipe and Tank LTAMs

and LTA Manager

2. Determine 2015 inspection scope and cost estimate 5/2/14 1

• Inspections would expand to non-licensed material piping

• Inspections for License Renewal commitment in-scope piping

3. Inspections beyond 2015 driven by

• Inspections for License Renewal commitment in-scope piping

• Re-inspections and EOC

• Inspections would expand to non-licensed material piping

Presentation Title 7

Note 1: Tracked by ATI 01617346

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Mitigations

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Method Site SystemOyster Creek CondensateDresden Rad WasteQuad Cities Rad Waste

Pipe in a pipe Braidwood Contaminated Drains

Carbon fiber wrap Dresden Condensate & Service Water

Dresden Rad WasteQuad Cities Rad Waste & Service WaterPeach Bottom Rad WasteBraidwood Fire protection

Dresden Fire protection

Dresden Sewer

Three Mile Island Make-up water

Reroute above ground Oyster Creek Condensate

Replace with Stainless

SteelClinton Condensate

Cathodic Protection All Sites High Risk Piping

Cured-in-Place

Create an Engineered

Trench

Replace with HDPE

Inspections

Presentation Title 9

Minimal Cathodic Protection required repair

Cathodic Protection no repair required

Inspections

Presentation Title 10

Direct Inspections

Presentation Title 11

Direct Inspections

Presentation Title 12

Guided Wave PIMS

Presentation Title 13

Presentation Title 14

Direct Inspections

Presentation Title 15

Composite Repair

Presentation Title 16

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Condensate Pipe Aluminum

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Composite Fiber

Presentation Title 18

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Inspections Opportunities

Inspection Cost savings opportunities)

1. Inline inspections for NEI 09-14 inspections

• Dresden - Containment Cooling Service Water (CCSW)

– Original excavation estimate $1.2M, ILI estimate = $471K,

– $729K savings over excavation - in 2014 forecast

• Peach Bottom – Contaminated Condensate Piping

– Excavation cost > $1.4M, ILI estimate = $600K,

– $8K savings over excavation - in 2014 forecast

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Long Term O&M Cost Opportunities

License Renewal (LR)

• LR in Scope Piping

• Braidwood - Condensate, Fire Protection, SX, Fuel Oil

– Current drafted commitment is to dig up and recoat all the CST piping

(approx. BR-11-0572, $33M)

– In line inspections can potentially extend or eliminate the commitment

the recoat commitment

• Limerick - Fire Protection, Normal Waste, Blowdown, Rad Waste,

ESW, Fuel Oil

– All of the piping is covered with concrete

• Byron – Condensate, Fire Protection, Blowdown , SX, Fuel Oil

• LaSalle – Condensate, Fire Protection, CSCS, Fuel Oil

• Clinton – Fire Protection, SX, Fuel Oil

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Long Term O&M Cost Opportunities *

License Renewal (LR)

Number of excavation inspections for LR based on LR-ISG-2011-

03 , XI.M41 Table 4a

• 29 to 60 direct excavation inspections over remaining plant life

depending on cathodic protection other variables.

• Upgrade cathodic protection can reduce inspections to 3 to 4

• Approved in-line-inspection (ILI) methods accepted in place of excavations,

would reduce inspection costs

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Safety

Presentation Title 22

Everyone goes home safely

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Questions?

Senior Management UPTI Actions