Water Storage Tanks. (Overhead water tank, Underground water tank etc)
Exelon Underground Pipe & Tank Program (UPTI) · Exelon Underground Pipe & Tank Program (UPTI)...
Transcript of Exelon Underground Pipe & Tank Program (UPTI) · Exelon Underground Pipe & Tank Program (UPTI)...
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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
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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
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Inspections
Presentation Title 9
Minimal Cathodic Protection required repair
Cathodic Protection no repair required
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Inspections
Presentation Title 10
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Direct Inspections
Presentation Title 11
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Direct Inspections
Presentation Title 12
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Guided Wave PIMS
Presentation Title 13
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Presentation Title 14
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Direct Inspections
Presentation Title 15
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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