View source for DCL-10-091, Response to NRC Letter Dated June 18, 2010, Request for Additional Information (High Energy Piping) for License Renewal Application

{{Adams
| number = ML102150030
| issue date = 07/28/2010
| title = Response to NRC Letter Dated June 18, 2010, Request for Additional Information (High Energy Piping) for License Renewal Application
| author name = Becker J
| author affiliation = Pacific Gas &amp; Electric Co
| addressee name = 
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000275, 05000323
| license number = DPR-080, DPR-082
| contact person = 
| case reference number = DCL-10-091
| document type = Letter type:DCL
| page count = 82
| project = 
| stage = Request
}}

=Text=
{{#Wiki_filter:* Pacific Gas and Electric Company' James R. Becker Diablo Canyon Power Plant Site Vice President Mail Code 104/5/601 P. 0. Box 56 Avila Beach, CA 93424 805.545.3462 July 28, 2010 Internal:
691.3462 Fax: 805.545.6445 PG&E Letter DCL-10-091 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 Response to NRC Letter dated June 18, 2010, Request for Additional Information (High Energy Piping) for the Diablo Canyon License Renewal Application Reference 1: PG&E Letter DCL-09-079, "License Renewal Application," dated November 23, 2009 Dear Commissioners and Staff: By letter dated November 23, 2009 (Reference 1), Pacific Gas and Electric Company (PG&E) submitted a License Renewal Application (LRA) for Diablo Canyon Units 1 and 2 (DCPP) requesting the DCPP Facility Operating Licenses be extended for 20 years beyond their current expiration dates.In a letter to PG&E dated May 24, 2010, the NRC requested additional information (RAI) related to the LRA Scoping and Screening Methodology Audit conducted at DCPP March 15-18, 2010. PG&E Letter DCL-10-067, dated June 18, 2010, responded to this RAI, and determined that high-energy piping in the turbine building should be included in the scope of the license renewal in accordance with 10 CFR 54.4(a)(2) under the preventative option of NEI 95-10, Appendix F, to protect safety-related cable in the turbine building from the effects of pipe whip and jet impingement.
DCL-10-067 committed to including the high-energy piping in a future LRA.Enclosure 1 of this letter is Amendment 5 which includes the addition of the high-energy piping in the turbine building to the scope of the LRA. PG&E has identified these additional changes to the LRA submitted in Reference 1 with line-in/line-out annotations in the attached pages.A member of the STARS (Strategic Teaming and Resource Sharing) Alliance "Z4 Callaway
* Comanche Peak
* Diablo Canyon
* Palo Verde
* San Onofre
* South Texas Project
* Wolf Creek Document Control Desk July 28, 2010 Page 2 PG&E Letter DCL-10-091 Should you have any questions or if additional information is needed regarding this letter, please contact Mr. Terence L. Grebel, License Renewal Project Manager, at (805) 545-4160.I declare under penalty of perjury that the foregoing is true and correct.Executed on July 28, 2010.James-"ecke Site Vice President pns3/9782 Enclosures cc: Diablo Distribution cc/enc: Elmo E. Collins, NRC Region IV Regional Administrator Nathaniel Ferrer, NRC Project Manager, License Renewal Kimberly J. Green, NRC Project Manager, License Renewal Michael S. Peck, NRC Senior Resident Inspector Alan B. Wang, NRC Project Manager, Office of Nuclear Reactor Regulation A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Caltaway o Comanche Peak o Diabto Canyon o Pato Verde o San Onofre o South Texas Project o Wolf Creek Enclosure 1 License Renewal Application Amendment 5 and Methodology Summary Page 1 of 80 Enclosure 1 PG&E Letter DCL-10-091 Page 2 of 80 In PG&E letter DCL-10-067, dated June 18, 2010, PG&E responded to request for additional information (RAI) 2.3-4 and committed to add high energy systems in the turbine building into the scope of license renewal. These systems are being added because these high energy systems could interact with safety-related electrical cable in the turbine building.
The preventive approach is being used for the high energy systems in order to provide added assurance that safety-related cable in the turbine building is not damaged by the effects of pipe whip and jet impingement due to the potential aging-related failure of a high energy component.
The high energy systems in the Diablo Canyon Power Plant (DCPP) turbine building were identified based on the plant licensing basis. The high energy portions of the following systems were evaluated and included within the scope of license renewal. An aging evaluation has been performed, and the corresponding license renewal application (LRA) sections and tables have been revised. The corresponding tables in Chapter 3 were also revised. The following systems or portions of systems in the turbine building contain high energy.These high energy systems were added to the scope of license renewal:* Extraction steam and heater drip system (2.3.3.18)
* Turbine generator and associated systems (2.3.3.18)
* Secondary sampling system (2.3.3.18)
* Turbine steam supply system (2.3.4.1)* Auxiliary steam system (2.3.4.2)* Feedwater system (2.3.4.3)* Condensate system (2.3.4.4)The components in the portions of the above systems that were added to scope were evaluated using the methodology as described in Chapter 2. The newly added components were evaluated, and any new materials or environments were identified and added to the materials, environments, aging effects, and aging management programs list contained in Chapter 3. Additionally the Chapter 3 tables were revised to reflect the results of the aging evaluations of the newly added components.
The LRA page changes included in this amendment only show text and individual table line items that have been added or deleted from the previous amendment (with exception to Table 2.2-1, for the purpose of clarity).
Existing text and table line items that did not change have not been included in this amendment.
In addition to the changes resulting from the addition of high energy systems, there are also revisions to screening and aging management review results identified due to the adjustment of the scoping boundary and identification of corrections that were needed.
Enclosure 1 PG&E Letter DCL-10-091 Page 3 of 80 List of Revised License Renewal Application Sections and Tables TablelSection No. Name Section 2.3.3.18 Miscellaneous Systems In Scope ONLY for Criterion 10 CFR 54.4(a)(2)
Section 2.3.4.1 Turbine Steam Supply System Section 2.3.4.2 Auxiliary Steam System Section 2.3.4.3 Feedwater System Section 2.3.4.4 Condensate System Section 3.3.2.1.18 Miscellaneous Systems In-Scope ONLY based on Criterion 10 CFR 54.4(a)(2)
Section 3.4.2.1.1 Turbine Steam Supply System Section 3.4.2.1.2 Auxiliary Steam System Section 3.4.2.1.4 Condensate System Table 2.2-1 DCPP Scoping Results Table 2.3.3-18 Miscellaneous Systems In Scope ONLY Based on Criterion 10 CFR 54.4(a)(2)
Table 2.3.4-1 Turbine Steam Supply System Table 2.3.4-2 Auxiliary Steam System Table 2.3.4-3 Feedwater System Table 2.3.4-4 Condensate System Table 3.3.1 Summary of Aging Management Evaluations in Chapter VII of NUREG-1 801 for Auxiliary Systems Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a)(2)
Table 3.4.1 Summary of Aging Management Evaluations in Chapter VIII of NUREG-1801 for Steam and Power Conversion System Table 3.4.2-1 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Turbine Steam Supply System Table 3.4.2-2 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Auxiliary Steam System Table 3.4.2-3 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Feedwater System Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate System Appendix B2.1.10 Closed-Cycle Cooling Water System Enclosure 1 Section 2.3 PG&E Letter DCL-10-091 SCOPING AND SCREENING RESULTS: Page 4 of 80 MECHANICAL SYSTEMS 2.3.3.18 Miscellaneous Systems In Scope ONLY for Criterion 10 CFR 54.4(a)(2)
The following systems are within the scope of license renewal only based on the criterion of 10 CFR 54.4(a)(2):
0 Turbine generator associated systems System Descriptions/System Intended Functions Extraction steam and heater drip system The purpose of the extraction steam and heater drip system is to provide preheated feedwater to the steam generators to improve cycle efficiency.
Extraction steam from the high pressure turbine and drains from the moisture separator reheaters are used to heat the feedwater in the last two stages of the feedwater heaters. Extraction steam from the low pressure turbines is used to heat the feedwater in the first four stages of the feedwater heaters. The extraction steam and heater drip system is nonsafety and performs no safety-related functions.
The extraction steam and heater drip system contains nonsafety piping that is located within safety-related areas. The extraction steam and heater drip system piping and piping components in the turbine building contain high energy fluids.The majority of the extraction steam and heater drip system consists of piping which contains high energy fluids located in the turbine building where there are some safety related cables. There is also a portion of system piping located in the auxiliary building.
Therefore, portions Portions of the extraction steam and heater drip system are within the scope of license renewal as nonsafety-related affecting safety-related components based on the criterion of 10 CFR 54.4(a)(2) for spatial interaction.
Secondary Sampling System The secondary sampling system is a nonsafety-related system that provides sampling and analysis of secondary plant systems.
Enclosure 1 Section 2.3 PG&E Letter DCL-10-091 SCOPING AND SCREENING RESULTS: Page 5 of 80 MECHANICAL SYSTEMS The central sample panel for each unit is located in the auxiliary building.
Each unit has another sample panel located in the buttress area west of the turbine building.
Most of the sample points and lines are in the turbine building but the lines leading to the central sample panels are in the auxiliary building.
Portions of the secondary sampling system piping and piping components in the turbine building contain high energy fluids.Portions of the secondary sampling system are in scope as nonsafety affecting safety-related components based on the criterion of 10 CFR 54.4(a)(2) due to spatial interaction and structural integrity.
High energy portions of the secondary sampling system in the turbine building could prevent the satisfactory accomplishment of a safety-related function associated with certain safety-related cables. These portions of the secondary sampling system are within the scope of license renewal as nonsafety affecting safety-related components based on the criterion of 10 CFR 54.4(a)(2).
Turbine Generator Associated Systems The purpose of the turbine generator associated systems is to support operation of the main turbine and generator by supplying turbine shaft sealing, generator shaft sealing, generator gas cooling, and generator water cooling. It also supplies shaft sealing for the main feed pump turbines.
It includes the following systems:* Gland sealing system, which prevents air leakage into the turbine along the shaft" Hydrogen cooling for the main generator* Generator seal oil, which prevents hydrogen from leaking from the main generator* Stator cooling water system The turbine generator associated systems do not perform any safety functions.
The turbine generator associated systems piping and piping components in the turbine building contain high energy fluids.The high energy portions of the turbine generator associated systems in the turbine building could prevent the satisfactory accomplishment of a safety-related function associated with certain safety-related cables. Therefore, portions of the turbine generator associated systems are within the scope of license renewal as nonsafety-related affecting safety-related components based on the criterion of 10 CFR 54.4(a)(2) for spatial interaction.
Enclosure 1 Section 2.3 PG&E Letter DCL-10-091 SCOPING AND SCREENING RESULTS: Page 6 of 80 MECHANICAL SYSTEMS FSAR References Details of the extraction steam and heater drip system are discussed in FSAR Sections 3.6.1.2, 10.2.2.1, and 10.4.7.2.Details of the radiation monitoring system (mechanical) system are discussed in FSAR Sections 11.4.1, 11.4.2.2, and Table 11.4-1.Details of the sanitary sewage system are discussed in FSAR Section 9.2.8.Details of the secondary sampling system are discussed in FSAR Sections 3.6.1.2 and 9.3.2.3.Details of the service cooling water system are discussed in FSAR Section 9.2.1.Details of the solid radwaste system are discussed in FSAR Sections 11.2 and 11.5.Details of the turbine generator associated systems are discussed in FSAR Sections 3.6.1.2, 10.2.2.3, and 10.4.3.License Renewal Boundary Drawings The license renewal boundary drawings for the extraction steam and heater drip system are listed below: LR-DCPP-05-106705-02 LR-DCPP-05-106705-03 LR-DCPP-05-106705-04 LR-DCPP-05-106705-05 LR-DCPP-05-106705-06 LR-DCPP-05-106705-07 LR-DCPP-05-107705-02 LR-DCPP-05-107705-03 LR-DCPP-05-107705-05 LR-DCPP-05-107705-06 LR-DCPP-05-107705-07 LR-DCPP-28-106728-04 LR-DCPP-28-106728-05 LR-DCPP-28-107728-04 LR-DCPP-28-107728-05 Enclosure 1 Section 2.3 PG&E Letter DCL-10-091 SCOPING AND SCREENING RESULTS: Page 7 of 80 MECHANICAL SYSTEMS The license renewal boundary drawings for the secondary sampling system are listed below: LR-DCPP-02-106702-02 LR-DCPP-02-106702-03 LR-DCPP-02-106702-04 LR-DCPP-02-106702-05 LR-DCPP-02-106702-08 LR-DCPP-02-107702-02 LR-DCPP-02-107702-03 LR-DCPP-02-107702-05 LR-DCPP-02-107702-08 LR-DCPP-02-107702-14 LR-DCPP-03-106703-02 LR-DCPP-04-106704-02 LR-DCPP-04-106704-03 LR-DCPP-04-106704-05 LR-DCPP-04-106704-06 LR-DCPP-04-106704-14 LR-DCPP-05-106705-02 LR-DCPP-06-106706-05 LR-DCPP-06-106706-07 LR-DCPP-06-106706-08 LR-DCPP-28-106728-04 LR-DCPP-28-106728-05 LR-DCPP-28-106728-07A LR-DCPP-28-107728-04 LR-DCPP-28-107728-05 LR-DCPP-28-107728-07A The license renewal boundary drawings for the turbine generator associated systems are listed below: LR-DCPP-22-106722-02 LR-DCPP-22-106722-03 LR-DCPP-22-106722-04 LR-DCPP-22-106722-05 LR-DCPP-22-106722-05A LR-DCPP-22-106722-06 LR-DCPP-22-107722-02 LR-DCPP-22-107722-03 LR-DCPP-22-107722-04 LR-DCPP-22-107722-05 LR-DCPP-22-107722-06 Enclosure 1 Section 2.3 PG&E Letter DCL-10-091 SCOPING AND SCREENING RESULTS: Page 8 of 80 MECHANICAL SYSTEMS 2.3.4.1 Turbine Steam Supply System System Description The turbine steam supply system conveys the generated steam from the nuclear steam supply system to the turbine generator, turbine driven feedwater pumps, the turbine-driven auxiliary feed-feedwater pump, condenser steam dumps, and the auxiliary steam system. Portions of the turbine steam supply system piping and piping components in the turbine building contain high energy fluids.System Intended Functions The turbine steam supply system provides heat removal from the RCS for controlled cooldown during normal, accident and post-accident conditions.
Portions of the turbine steam supply system provide containment isolation and overpressure protection for the secondary side of the steam generators and the main steam piping. The turbine steam supply system also provides steam as a motive force to support the operation of the turbine-driven auxiliary feedwater pumps. Therefore, pe;i, of- ,.the turbine steam supply system is are-within the scope of license renewal based on the criteria of 10 CFR 54.4(a)(1).
Portions of the safety-related turbine steam supply system attach to nonsafety-related piping such that the structural failure of the nonsafety-related piping could prevent satisfactory accomplishment of safety-related system functions.
Some of the turbine steam supply system in the auxiliary building contains nonsafety-related components that are spatially oriented such that their failure could prevent the satisfactory accomplishment of a safety-related function associated with a safety-related component.
TheFefeTe, High energy portions of turbine steam supply system in the turbine building could prevent the satisfactory accomplishment of a safety-related function associated with certain safety-related cables. These portions of the turbine steam supply system are within-the in scope of license renewal as nonsafety affecting safety-related components based on the criterion of 10 CFR 54.4(a)(2).
Portions of the turbine steam supply system support ATWS, fire protection, SBO and EQ requirements and are within the scope of license renewal based on the criteria 10 CFR 54.4(a)(3).
FSAR References Additional details of the turbine steam supply system can be found in FSAR Sections 3.6.1.2, 6.5.2.1.2, 10.2, 10.3, 10.4.4, and 10.4.8.
Enclosure 1 PG&E Letter DCL-10-091 Page 9 of 80 Section 2.3 SCOPING AND SCREENING RESULTS: MECHANICAL SYSTEMS License Renewal Boundary Drawings The license renewal boundary drawings for the turbine steam supply system are listed below: LR-DCPP-04-106704-05 LR-DCPP-04-106704-06 LR-DCPP-04-106704-07 LR-DCPP-04-106704-09 LR-DCPP-04-106704-10 LR-DCPP-04-106704-11 LR-DCPP-04-106704-12 LR-DCPP-04-106704-13 LR-DCPP-04-106704-17 LR-DCPP-04-107704-05 LR-DCPP-04-107704-06 LR-DCPP-04-107704-07 LR-DCPP-04-107704-10 LR-DCPP-04-107704-11 LR-DCPP-04-107704-12 LR-DCPP-04-107704-13 Enclosure 1 Section 2.3 PG&E Letter DCL-10-091 SCOPING AND SCREENING RESULTS: Page 10 of 80 MECHANICAL SYSTEMS 2.3.4.2 Auxiliary Steam System System Description The auxiliary steam system consists of two auxiliary boilers, pumps, receivers, tanks, piping, and valves. One auxiliary boiler (0-2) is located in a separate building; the other auxiliary boiler (0-1) is located in a separate room in the Unit 1 ventilation building and is abandoned.
The piping and valves associated with the auxiliary steam system are located in the auxiliary boiler enclosure, the turbine building, the auxiliary building, the fuel handling building, and the containment.
The system contains piping which penetrates containment and contains the necessary containment isolation valves. The auxiliary steam system piping and piping components in the turbine building contain high energy fluids.System Intended Functions Portions of the nonsafety-related auxiliary steam system piping are attached to safety-related containment penetration piping such that the structural failure of the nonsafety-related piping could prevent satisfactory accomplishment of safety-related system functions.
Portions of the auxiliary steam system in the auxiliary building and containment contain nonsafety-related components that are spatially oriented such that their failure could prevent the satisfactory accomplishment of a safety-related function associated with a safety-related component.
The high energy portions of the auxiliary steam system in the turbine building could prevent the satisfactory accomplishment of a safety-related function associated with certain safety-related cables. These portions of the auxiliary steam system are within the scope of license renewal as nonsafety-related components affecting safety-related components based on the criterion of 10 CFR 54.4(a)(2).
FSAR References Additional details of the auxiliary steam system are included in FSAR Sections 3.6.1.2 and 9.3.7.1.License Renewal Boundary Drawings The license renewal boundary drawings for the auxiliary steam system are listed below: LR-DCPP-06-106706-04 Enclosure 1 Section 2.3 PG&E Letter DCL-10-091 SCOPING AND SCREENING RESULTS: Page 11 of 80 MECHANICAL SYSTEMS 2.3.4.3 Feedwater System System Description The water discharged from the feedwater pumps flows through the single stage of high pressure heaters to the steam generators through four lines penetrating the containment, one line for each steam generator.
Flow regulating valves, flow venturis, isolation valves, bypass regulating valves, and a check valve are installed in each line outside the containment.
The feedwater system piping and piping components in the turbine building contain high energy fluids.System Intended Functions Portions of the safety-related feedwater system attach to nonsafety-related piping such that the structural failure of the nonsafety-related piping could prevent satisfactory accomplishment of safety-related system functions.
Portions of the feedwater system in the auxiliary building contain nonsafety-related components that are spatially oriented such that their failure could prevent the satisfactory accomplishment of a safety-related function associated with a safety-related component.
The high energy portions of the feedwater system that are in the turbine building could prevent the satisfactory accomplishment of a safety-related function associated with certain safety-related cables. These portions of feedwater system are within the scope of license renewal as nonsafety affecting safety-related components based on the criterion of 10 CFR 54.4(a)(2).
FSAR References Additional details of the feedwater system are included in FSAR Sections 3.6.1.2 and 10.4.7.License Renewal Boundary Drawings The license renewal boundary drawings for the feedwater system are listed below: LR-DCPP-03-106703-05 LR-DCPP-03-107703-05 Enclosure 1 Section 2.3 PG&E Letter DCL-10-091 SCOPING AND SCREENING RESULTS: Page 12 of 80 MECHANICAL SYSTEMS 2.3.4.4 Condensate System System Description The purposes of the condensate system are: (1) to collect the condensate from the exhaust steam of main turbines and feedwater pump turbines and the steam cycle drains in the main condenser hotwell, and (2) to deliver deaerated water from the main condenser hotwells to the suction of the main feedwater pumps.Together with the feedwater system, the feedwater is delivered to the steam generators at the required pressure and temperature.
The hotwell may also provide water to the firewater system or the auxiliary feedwater system for long-term cooling.Major components in the condensate system include the main condenser, condensate demineralizers three half capacity centrifugal condensate pumps and three condensate booster pumps.The condensate system interfaces with the feedwater system, which is evaluated in Section 2.3.4.3. The condensate system interfaces with the secondary sampling system, which is evaluated in the secondary sampling system in Section 2.3.3.18.
The condensate storage tank, which provides makeup and surge capacity to compensate for changes in condensate system inventory, is evaluated in the makeup water system in Section 2.3.3.5.Portions of the condensate system piping and piping components in the turbine building contain high energy fluids.System Intended Functions Portions of the condensate system are located in the auxiliary building and contain nonsafety-related components that are spatially oriented such that their failure could prevent the satisfactory accomplishment of a safety-related function associated with a safety-related component.
High energy portions of the condensate system in the turbine building could prevent the satisfactory accomplishment of a safety-related function associated with certain safety-related cables. Portions of the condensate system may be used to provide water for long term cooling. These portions of the condensate system are in scope as nonsafety affecting safety-related components based on the criterion of 10 CFR 54.4(a)(2).
The license renewal boundary drawings for the condensate system are listed below: LR-DCPP-02-106702-05 LR-DCPP-02-106702-06 Enclosure 1 PG&E Letter DCL-10-091 Page 13 of 80 LR-DCPP-02-106702-07 LR-DCPP-02-106702-08 LR-DCPP-02-106702-12 LR-DCPP-02-106702-14 LR-DCPP-02-107702-05 LR-DCPP-02-107702-06 LR-DCPP-02-107702-07 LR-DCPP-02-107702-08 LR-DCPP-02-107702-12 LR-DCPP-02-107702-14 Section 2.3 SCOPING AND SCREENING RESULTS: MECHANICAL SYSTEMS Enclosure 1 Section 3.3 PG&E Letter DCL-10-091 AGING MANAGEMENT OF AUXILIARY SYSTEMS Page 14 of 80 3.3.2.1.18 Miscellaneous Systems In-Scope ONLY based on Criterion 10 CFR 54.4(a)(2)
Materials The materials of construction for the miscellaneous systems in scope ONLY based on Criterion 10 CFR 54.4(a)(2) component types are:* Copper Alloy (greater than 15 percent Zinc)* Nickel Alloys Environment The miscellaneous systems in scope ONLY based on Criterion 10 CFR 54.4(a)(2) component types are exposed to the following environments:
* Dry Gas* Lubricating Oil Aging Effects Requiring Management The following miscellaneous systems in-scope ONLY based on Criterion 10 CFR 54.4(a)(2) aging effects require management:
0 Wall thinning Aging Management Programs The following aging management programs manage the aging effects for the miscellaneous systems in scope ONLY based on Criterion 10 CFR 54.4(a)(2) component types:* Flow-Accelerated Corrosion (B2.1.6)* Lubricating Oil Analysis (B2.1.23)
Enclosure 1 PG&E Letter DCL-10-091 Page 15 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEMS 3.4.2.1.1 Turbine Steam Supply System Materials The materials of construction for the turbine steam supply system component types are: S S Glass Nickel Alloys Enclosure 1 PG&E Letter DCL-10-091 Page 16 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEMS 3.4.2.1.2 Auxiliary Steam System Materials The materials of construction for the auxiliary steam system component types are: Cast Iron (Gray Cast Iron)Environment The auxiliary steam system components are exposed to the following environments:
*Dr-y Gas Enclosure 1 Section 3.4 PG&E Letter DCL-10-091 AGING MANAGEMENT OF STEAM AND Page 17 of 80 POWER CONVERSION SYSTEMS 3.4.2.1.4 Condensate System Environment The condensate system components are exposed to the following environments:
* Closed Cycle Cooling Water* Dry Gas Aging Effects Requiring Management The following condensate system aging effects require management:
0 Cracking Aging Management Programs The following aging management programs manage the aging effects for the condensate system component types:* Closed-Cycle Cooling Water System (B2.1.10)
Enclosure 1 PG&E Letter DCL-10-091 Page 18 of 80 Section 2.2 PLANT-LEVEL SCOPING RESULTS Table 2.2-1 DCPP Scoping Results In Section 2 System/Structure Scope Scoping Results Reactor Vessel, Internals, and Reactor Coolant System Pressurizer Yes 2.3.1.3 Reactor coolant, includes:
Yes 2.3.1.2 RVLIS and RVRLIS Reactor core, includes: Nuclear Fuel Yes 2.3.1.5 Control Rod Mechanical SSCs Reactor vessel and internals Yes 2.3.1.1 Steam generators Yes 2.3.1.4 Engineered Safety Features Containment HVAC, including:
Yes 2 3.2.4 Containment H 2 control Containment spray Yes 2.3.2.2 Residual heat removal Yes 2.3.2.3 Safety injection Yes 2.3.2.1 Auxiliary Systems Auxiliary building HVAC, includes: Main auxiliary building HVAC Yes 2.3.3.11 Miscellaneous auxiliary building HVAC Fuel handling building HVAC Chemical and volume control Yes 2.3.3.8 Component cooling water Yes 2.3.3.4 Compressed air, includes: Backup air and N 2  Yes 2.3.3.7 Compressed breathing air Control Room HVAC, includes:
Yes 2.3.3.10 Plant process computer HVAC Cranes and fuel handling, includes: Fuel handling Yes 2.3.3.1 cranes, hoists, and monorails Nuclear fuel storage Diesel generator fuel oil Yes 2.3.3.13 Diesel generator Yes 2.3.3.14 Enclosure 1 PG&E Letter DCL-10-091 Page 19 of 80 Section 2.2 PLANT-LEVEL SCOPING RESULTS In Section 2 System/Structure Scope Scoping Results Fire Protection, includes: Fire Detection Firewater system Yes 2.3.3.12 CO 2 system Halon (Sim/Comp Rooms) system Portable fire extinguishers Gaseous radwaste Yes 2.3.3.16 Liquid radwaste Yes 2.3.3.17 Lube Oil Yes 2.3.3.15 Makeup water, includes Yes 2.3.3.5 Domestic and drinking water Miscellaneous HVAC, includes: Turbine Building Yes 2.3.3.9 ASW Pump Room Ventilation Radwaste Storage Building Miscellaneous systems in scope ONLY for criterion Yes 2.3.3.18 10 CFR 54.4(a)(2), includes: Extraction steam and heater drip Radiation monitoring (mechanical)
Sanitary sewage Secondary sampling Service cooling water Solid radwaste Turbine generator associated systems -Nuclear steam supply sampling Yes 2.3.3.6 Oily water and turbine sump Yes 2.3.3.19 Saltwater and chlorination, includes: Saltwater system Yes 2.3.3.3 Auxiliary saltwater Chlorination Spent fuel pool cooling, includes: Spent fuel pool cooling Yes 2.3.3.2 Spent fuel pool purification Hazardous waste No N/A Laundry facility and decontamination equipment No N/A Nitrogen and hydrogen No N/A Enclosure 1 PG&E Letter DCL-10-091 Page 20 of 80 Section 2.2 PLANT-LEVEL SCOPING RESULTS System/Structure Steam and Power Conversion System Auxiliary feedwater, includes: Long-term cooling water -auxiliary feedwater alternate Yes 2.3.4.5 suction sources Auxiliary steam Yes 2.3.4.2 Condensate, includes:
Yes 234.4 Condensate polishing Feedwater Yes 2.3.4.3 Turbine steam supply (TSS), includes: TSS -downstream of MSIV Yes 2.3.4.1 TSS -upstream of MSIV TSS -steam generator blowdown Tu rbine generator associated systemns No WA l Containments, Structures, and Component Supports Auxiliary building Yes 2.4.3 Containment building Yes 2.4.1 Control room (located in auxiliary building)
Yes 2.4.2 Discharge structure Yes 2.4.12 Diesel fuel oil pump vaults and structures Yes 2.4.7 Earthwork and yard structures Yes 2.4.11 Fuel handling building Yes 2.4.9 Intake structure and intake control building Yes 2.4.10 Outdoor water storage tank foundations and encasements Yes 2.4.13 Pipeway structure Yes 2.4.6 Radwaste storage facilities Yes 2.4.5 Supports Yes 2.4.14 Turbine building, includes: Administration building CCW heat exchanger room Yes 2.4.4 Elevated walkway Emergency diesel generator rooms 230kV Switchyard, 500kV Switchyard, and electrical Yes 2.4.8 foundations and structures Independent spent fuel storage installation and cask transfer No N/A facility NoN/A Enclosure 1 PG&E Letter DCL-10-091 Page 21 of 80 Section 2.2 PLANT-LEVEL SCOPING RESULTS tIn Section 2 System/Structure Scope Scoping Results Auxiliary boiler enclosure No N/A Avila gate guardhouse No N/A Avila gate storage building No N/A Bechtel administration trailers No N/A Bio-lab shower / Laboratory facility No N/A Biological laboratory and offices No N/A Blast and paint facility No N/A Boat dock No N/A Boat repair shop No N/A Building, auto, and land services trailer No N/A Building mechanic'shop No N/A Chemical storage building No N/A Chlorination and domestic water building (not in use) No N/A Clarifier and make-up pretreatment building No N/A Document Control RMS Building No N/A Document storage facilities No N/A Emergency Operations Facility No N/A Employee assistance program office trailer ,No N/A Energy Information Center No N/A Engineering services trailer No N/A Environmental monitoring program facilities , No N/A Firing range No N/A Fitness for duty buildings No N/A Fitness trailer No N/A Fleet mechanic office No N/A Gas cylinder storage No N/A General construction paint compressor building (not in use) No N/A General construction paint shack /sand blast facility' No N/A Hazardous waste facility No N/A Hazardous material office and warehouse No N/A Housekeeping field office No N/A Intake maintenance shop No N/A Enclosure 1 PG&E Letter DCL-10-091 Page 22 of 80 Section 2.2 PLANT-LEVEL SCOPING RESULTS Section 2 InSopn System/Structure Scope Scoping Sp Results Intake office/security access building No N/A Ionics reverse osmosis facility No N/A Laundry facility No N/A Learning center and maintenance shop No N/A Learning center and simulator No N/A Main warehouse No N/A MATCON express trailer No N/A Meteorological Tower No. 1 and building No N/A Meteorological Tower No. 2 and'building No N/A NOS project files No N/A Nuclear Quality Services trailer No N/A Oceanography laboratory No N/A Offsite emergency laboratory No N/A Old Steam Generator Storage Facility No N/A Outage services facilities No N/A Plant compressed air facility No N/A Plant security building and structures No N/A Portable fire pump building No N/A Raw water collection facility and wells at Diablo Creek No N/A Radiation protection trailer No N/A Restroom trailers No N/A Scaffold storage building No N/A Security guard station No N/A Service air pad building No N/A Sewage treatment plant No N/A Site overlook No N/A Storage building -500kV switchyard No N/A Technical maintenance/Telecom/Medical facility No N/A Telecommunications trailer No N/A Telephone terminal building No N/A Turbine generator equipment warehouse No N/A Unit 2 cold machine shop No N/A Enclosure 1 PG&E Letter DCL-10-091 Page 23 of 80 Section 2.2 PLANT-LEVEL SCOPING RESULTS In Section 2 System/Structure Scope Scoping Results Utility Crew / Firewatch 
/ Radwaste field office No N/A Vehicle maintenance shop No N/A Vehicle maintenance shop parts office No N/A Vending machine facility No N/A Warehouse A No N/A Warehouse B No N/A Wastewater holding and treatment equipment enclosure No N/A Westinghouse office trailer No N/A Yard Containment Access Facility No N/A Electrical and Instrumentation and Controls AMSAC Yes N/A Control rod electrical SSCs Yes N/A Communications Yes N/A Eagle 21 Yes N/A Emergency lighting, includes: Emergency AC lighting Emergency DC lighting Yes N/A Battery operated lighting Control room lighting Pipe rack lighting Incore flux mapping Yes N/A Main generator electrical equipment (25kV) Yes N/A Nuclear instrumentation Yes N/A Radiation monitoring Yes N/A Safety parameter display Yes N/A Seismic monitoring, includes:
Yes N/A Reactor seismic trip Site emergency and containment evacuation Yes N/A Solid state protection Yes N/A 120 VAC Yes N/A 125 VDC Yes N/A 480V \ Yes N/A 4.16kV Yes N/A 12kV Yes N/A Enclosure 1 PG&E Letter DCL-10-091 Page 24 of 80 Section 2.2 PLANT-LEVEL SCOPING RESULTS In Section 2 System/Structure Scope Scoping Results 230kV Yes N/A 500kV Yes N/A Auxiliary building control board digital No N/A Boric acid heat trace No N/A Cathodic protection No N/A Digital rod position indication No N/A Loose parts monitoring No N/A Meteorological monitoring No N/A Plant data network No N/A Plant process computer and annunciator No N/A Security No N/A Security UPS No N/A 120V general use and normal lighting No N/A Enclosure 1 PG&E Letter DCL-10-091 Page 25 of 80 Section 2.3 SCOPING AND SCREENING RESULTS: MECHANICAL SYSTEMS Table 2.3.3-18 Miscellaneous Systems In Scope ONLY Based on Criterion 10 CFR 54.4(a)(2)
Component Type Intended Function Expansion Joint Leakage Boundary (spatial)Heat Exchanger (Air Side Seal Oil Cooler) Leakage Boundary (spatial)Heat Exchanger (Gas Dryer Water Gas) Leakage Boundary (spatial)Heat Exchanger (Gas Dryer) Leakage Boundary (spatial)Heat Exchanger (H2 Side Seal Oil Cooler) Leakage Boundary (spatial)Heat Exchanger (Stator CIg 02 Cooler) Leakage Boundary (spatial)Orifice Leakage Boundary (spatial)Regulators Leakage Boundary (spatial)Rupture Disc Leakage Boundary (spatial)Thermowell Leakage Boundary (spatial)Trap Leakage Boundary (spatial)Table 2.3.4-1 Turbine Steam Supply System Component Type Intended Function Expansion Joint Flow Indicator Heat Exchanger (Steam Generator Blowdown)Heat Exchanger (Turbine Bldg)Sight Gauge Strainer Test Gonnection Turbine Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Filter Leakage Boundary (spatial)Pressure Boundary Pressure BRounda.,'t Leakage Boundary (spatial)Pressure Boundary Enclosure 1 PG&E Letter DCL-10-091 Page 26 of 80 Table 2.3.4-2 Auxiliary Section 2.3 SCOPING AND SCREENING RESULTS: MECHANICAL SYSTEMS Steam System Component Type Intended Function Heat Exchanger (C02 Vaporizer)
Leakage Boundary (spatial)Heat Exchanger (Reboiler)
Leakage Boundary (spatial)Heater Leakage Boundary (spatial)Table 2.3.4-3 Feedwater System Component Type Intended Function Filter Leakage Boundary (spatial)Flow Element Leakage Boundary (spatial)Pressure Boundary Throttle Heat Exchanger (Feedwater Heater) Leakage Boundary (spatial)Structural Integrity (attached)
Orifice Leakage Boundary (spatial)Table 2.3.4-4 Condensate System Component Type Intended Function Demineralizer Ejector Filter Flexible Hoses Flow Element Flow Indicator Heat Exchanger (Caustic Dilution Hx -Shell)Heat Exchanger (Caustic Dilution Hx -Tubesheet)
Heat Exchanger (Condensate Cooler -Shell)Heat Exchanger (Condensate Cooler -Tubesheet)
Heat Exchanger (Feedwater Heater -Head)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)
Enclosure 1 PG&E Letter DCL-10-091 Page 27 of 80 Table 2.3.4-4 Condenm Section 2.3 SCOPING AND SCREENING RESULTS: MECHANICAL SYSTEMS sate System (Continued)
Component Type Intended Function Heat Exchanger (Feedwater Heater -Shell)Heat Exchanger (Feedwater Heater)Heat Exchanger (Gland Steam Condenser 
-Head)Heat Exchanger (Gland Steam Condenser 
-Shell)Heat Exchanger (Heaters Drain Cooler -Head)Heat Exchanger (Heaters Drain Cooler -Shell)Heat Exchanger (Hydrogen Cooler -Head)Heat Exchanger (Hydrogen Cooler -Shell)Heat Exchanger (SJAE Aftercondenser 
-Head)Heat Exchanger (SJAE Aftercondenser 
-Shell)Heat Exchanger (SJAE Intercondenser 
-Head)Heat Exchanger (SJAE Intercondenser 
-Shell)Heat Exchanger (Stator Coil Cooler -Head)Heat Exchanger (Stator Coil Cooler -Shell)Orifice Pulsation Dampener Strainer Tank Trap Tubing Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)Leakage Boundary (spatial)
Enclosure 1 PG&E Letter DCL-10-091 Page 28 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.1 Summary of Aling Management Evaluations in Chapter VII of NUREG-1801 for Auxiliary Systems Item Component Type Aging Effect I Mechanism Aging Management Further Discussion Number Program Evaluation I Recommended 3.3.1.80 Stainless steel and copper alloy piping, piping components, and piping elements exposed to raw water Loss of material due to pitting, Open-Cycle Cooling Water No crevice, and microbiologically System (B2.1.9)influenced corrosion Consistent with NUREG-1801 for material, environment, and aging effect, but a different aging management program Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22) is credited.
Not applieable-DCPP has no in'cope stainlcss steel and coppet alloy piping, iping elements expsdtra wtr in the emergency diesl geneFratFr system, o the applicable NUREG 1801 lines were not used.
Enclosure 1 PG&E Letter DCL-10-091 Page 29 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4 (a)(2)Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Closure Bolting LBS,-SIA Carbon Steel Plant Indoor Air Loss of material Bolting Integrity (B2.1.7) VIII.H-4 3.4.1.22 B Closure Bolting LBS Demineralizer Demineralizer Expansion Joint Expansion Joint Expansion Joint Filter Filter Filter Filter LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS Carbon Steel Carbon Steel Carbon Steel Stainless Steel Stainless Steel (Ext)Plant Indoor Air (Ext)Closed Cycle Cooling Water (Int)Plant Indoor Air (Ext)Plant Indoor Air (Ext)Secondary Water (Int)Loss of preload Loss of material Loss of material Bolting Integrity (B2.1.7) VIII.H-5 3.4.1.22 3.3.1.47 B B None Stainless Secondary Water Steel (Int)Loss of material Cracking Loss of material Loss of material Loss of material Closed-Cycle Cooling Water System (B2. 1.10)External Surfaces Monitoring Program (B2.1.20)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling Water System (B2.1.10)Lubricating Oil Analysis (B2.1.23) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Closed-Cycle Cooling Water System (B2. .10)Closed-Cycle Cooling Water System (B2.1.10)VIII.I-10 3.4.1.41 VIII.C-1 3.4.1.16 VIII.C-2 VIII.H-7 3.4.1.28 B VII.C2-14 3.4.1.14 A A A B B Carbon Steel Carbon Steel Closed Cycle Cooling Water (Int)Lubricating Oil (Int)VII.C2-14 3.3.1.47 VIII.A-14 3.4.1.07 Carbon Steel Plant Indoor Air (Ext)VIII.H-7 3.4.1.28 B Stainless Steel Stainless Steel Closed Cycle Loss of material Cooling Water (Int)Closed Cycle Cracking Cooling Water (Int)VIII. E-24 VIII.E-25 3.4.1.25 3.4.1.23 B B Filter Enclosure 1 PG&E Letter DCL-10-091 Page 30 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS agement Evaluation 
-Miscellaneous Systems in scope Pro inagement gram NUREG-1801 Vol.2 Item Table I Item Notes! I =Steel Lubricating Oil Analysis VIII.A-9 (B2.1.23) and One-Time Inspection (B2.1.16)3.4.1.19 B Filter Flow Element Flow Element Flow Element Flow Element Flow Element Flow Element Flow Element Flow Element Flow Element Flow Element LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS Stainless Steel Carbon Steel Carbon Steel Plant Indoor Air (Ext)Closed Cycle Cooling Water (Int)Dry Gas (Int)None None VIII.I-10 3.4.1.41 VII.C2-14 3.3.1.47 Loss of material Closed-Cycle Cooling Water System (B2.1.10)None A B None VII1.1-15 3.4.1.44 A Carbon Steel Lubricating Oil (Int) Loss of material Carbon Steel Carbon Steel Plant Indoor Air (Ext)Secondary Water (Int)Loss of material Loss of material Loss of material Lubricating Oil Analysis VIII.A-14 (B2.1.23) and One-Time Inspection (B2.1.16)External Surfaces VIII.H-7 Monitoring Program (B2.1.20)Water Chemistry VIII. E-34 (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry VIII.A-16 (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling VIII.E-24 Water System (B2.1.10)Closed-Cycle Cooling VIII.E-25 Water System (B2.1.10)3.4.1.07 B 3.4.1.28 B Carbon Steel Steam (Int)3.4.1.04 3.4.1.02 3.4.1.25 3.4.1.23 3.4.1.44 Stainless Steel Stainless Steel Stainless Steel Stainless Steel Closed Cycle Loss of material Cooling Water (Int)Closed Cycle Cracking Cooling Water (Int)Dry Gas (Int) None A A B B A A None None VII1.1-12 Plant Indoor Air None (Ext)VIII.l-10 3.4.1.41 Enclosure 1 PG&E Letter DCL-10-091 Page 31 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a)(2) (Continued)
Component Intended Material Environment AgIng Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.TManagement 2 Item Flow Element LBS Stainless Secondary Water Loss of material Water Chemistry VIII.C-1 3.4.1.16 A Steel (Int)Stainless Secondary Water Steel (Int)Flow Element Flow Element Flow Element Flow Indicator Flow Indicator Flow Indicator Flow Indicator Flow Indicator Flow Indicator Flow Indicator LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS Stainless Steel Steam (Int)Stainless Steam (Int)Steel Cracking Cracking Loss of material Loss of material Loss of material (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None VIII.C-2 VIII.A-10 3.4.1.39 E, 4 E, 4 VIII.A-12 3.4.1.37 3.4.1.14 A Carbon Steel Plant Indoor Air (Ext)Carbon Steel Secondary Water (Int)VIII.H-7 3.4.1.28 B VIII.E-34 3.4.1.04 A VIII.I-5 3.4.1.40 A VIII.I-8 3.4.1.40 A Glass Glass Stainless Steel Stainless Steel Stainless Steel Plant Indoor Air (Ext)Secondary Water (Int)Plant Indoor Air (Ext)Plant Indoor Air (Ext)Secondary Water (Int)None None None None None None None VII.J-15 3.3.1.94 VIII.I-10 3.4.1.41 VIII.D1-4 3.4.1.16 A A A Loss of material Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)
Enclosure 1 PG&E Letter DCL-10-091 Page 32 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4 (a) (2) (Continued)
Component Intended IMaterial Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Flow Indicator LBS Stainless Secondary Water Loss of material Water Chemistry VIII.E-29 3.4.1.16 A Steel (Int)Flow Indicator Heat Exchanger (Air Side Seal Oil Cooler)Heat Exchanger (Air Side Seal Oil Cooler)Heat Exchanger (Air Side Seal Oil Cooler)Heat Exchanger (Air Side Seal Oil Cooler)Heat Exchanger (Air Side Seal Oil Cooler)Heat Exchanger (Air Side Seal Oil Cooler)LBS LBS LBS LBS LBS LBS LBS Stainless Secondary Water Cracking Steel (Int)(B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling Water System (B2.1.10)VIII.E-30 3.4.1.14 A Carbon Steel Closed Cycle Cooling Water (Int)Loss of material VIII.A-1 3.4.1.24 B Carbon Steel Lubricating Oil (Int) Loss of material Lubricating Oil Analysis VIII.A-14 (B2.1.23) and One-Time Inspection (B2.1.16)3.4.1.07 Carbon Steel Copper Alloy Copper Alloy Copper Alloy Plant Indoor Air (Ext)Closed Cycle Cooling Water (Ext)Closed Cycle Cooling Water (Int)Lubricating Oil (Ext)Loss of material Loss of material Loss of material Loss of material External Surfaces Monitoring Program (B2.1.20)VIII.H-7 3.4.1.28 B B D D Closed-Cycle Cooling VIII.E-16 Water System (B2.1.10)Closed-Cycle Cooling VIII.E-16 Water System (B2.1.10)Lubricating Oil Analysis VIII.A-3 (B2.1.23) and One-Time Inspection (B2.1.16)3.4.1.26 3.4.1.26 3.4.1.18 B Enclosure 1 PG&E Letter DCL-10-091 Page 33 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scone ONLY for Criterion 10 CFR 54.4(a) (2) (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Noe Type Function Requiring Program 1801 Vol.IManagement 2 Item Heat LBS Copper Alloy Lubricating Oil (lnt) Loss of material Lubricating Oil Analysis Vlll.A-3 3.4.1.18 B Exchanger (Air Side Seal Oil Cooler)Heat Exchanger (Gas Dryer Water Gas)Heat Exchanger (Gas Dryer Water Gas)Heat Exchanger (Gas Dryer Water Gas)Heat Exchanger (Gas Dryer Water Gas)Heat Exchanger (Gas Dryer)Heat Exchanger (Gas Dryer)Heat Exchanger (H2 Side Seal Oil Cooler)(B2.1.23) and One-Time Inspection (B2.1.16)LBS LBS LBS LBS LBS LBS LBS Carbon Steel Dry Gas (Int)None None VIII.1-15 3.4.1.44 A Carbon Steel Carbon Steel Carbon Steel Plant Indoor Air (Ext)Secondary Water (Ext)Secondary Water (Int)Loss of material Loss of material Loss of material None Loss of material Loss of material External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None External Surfaces Monitoring Program (B2.1,20)Closed-Cycle Cooling Water System (B2.1.10)VIII.H-7 3.4.1.28 B VIII.E-37 3.4.1.03 A VIII.E-37 3.4.1.03 A Carbon Steel Dry Gas (Int)VIII.1-15 3.4.1.44 A Carbon Steel Carbon Steel Plant Indoor Air (Ext)Closed Cycle Cooling Water (Int)VIII.H-7 3.4.1.28 B VIII.A-1 3.4.1.24 B Enclosure 1 PG&E Letter DCL-10-091 Page 34 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a)(2) (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table 1 Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Heat LBS Carbon Steel Lubricating Oil (Int) Loss of material Lubricating Oil Analysis VIII.A-14 3.4.1.07 B Exchanger (H2 Side Seal Oil Cooler)Heat Exchanger (H2 Side Seal Oil Cooler)Heat Exchanger (H2 Side Seal Oil Cooler)Heat Exchanger (H2 Side Seal Oil Cooler)Heat Exchanger (H2 Side Seal Oil Cooler)Heat Exchanger (H2 Side Seal Oil Cooler)Heat Exchanger (Stator CIg 02 Cooler)(B2.1.23) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)LBS LBS LBS LBS LBS LBS Carbon Steel Copper Alloy Copper Alloy Copper Alloy Plant Indoor Air (Ext)Closed Cycle Cooling Water (Ext)Closed Cycle Cooling Water (Int)Lubricating Oil (Ext)Loss of material Loss of material Loss of material Loss of material VIII.H-7 3.4.1.28 B Closed-Cycle Cooling VIII.E-16 Water System (B2.1.10)3.4.1.26 D D Closed-Cycle Cooling Water System (B2.1.10)VIII.E-16 3.4.1.26 Lubricating Oil Analysis VIII.A-3 (B2.1.23) and One-Time Inspection (B2.1.16)Lubricating Oil Analysis VIII.A-3 (B2.1.23) and One-Time Inspection (B2.1.16)3.4.1.18 B 3.4.1.18 B Copper Alloy Lubricating Oil (Int) Loss of material Carbon Steel Closed Cycle Cooling Water (Int)Loss of material Closed-Cycle Cooling Water System (B2.1.10)VIII.A-1 3.4.1.24 B Enclosure 1 PG&E Letter DCL-10-091 Page 35 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4 (a) (2) (Continued)
Component Type Intended Material Function Environment Aging Effect Requiring Management Aging manage Program! I Heat Exchanger (Stator CIg 02 Cooler)Heat Exchanger (Stator CIg 02 Cooler)Heat Exchanger (Stator CIg 02 Cooler)Orifice Orifice Orifice Orifice Orifice Orifice Orifice LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS Carbon Steel Copper Alloy Copper Alloy Carbon Steel Carbon Steel Carbon Steel Stainless Steel Stainless Steel Stainless Steel Plant Indoor Air (Ext)Closed Cycle Cooling Water (Ext)Closed Cycle Cooling Water (Int)Closed Cycle Cooling Water (Int)Lubricating Oil (Int)Plant Indoor Air (Ext)Loss of material Loss of material Loss of material Loss of material Loss of material Loss of material External Surfaces Monitoring Program (B2.1.20)3.4.1.28 Closed-Cycle Cooling VIII.E-16 Water System (B2.1.10)Closed-Cycle Cooling VIII.E-16 Water System (B2.1.10)Closed-Cycle Cooling VI1.C2-14 Water System (B2. 1.10)Lubricating Oil Analysis VIII.A-14 (B2.1.23) and One-Time Inspection (B2.1.16)External Surfaces VIII.H-7 Monitoring Program (B2.1.20)Closed-Cycle Cooling VIII.E-24 Water System (B2.1.10)Closed-Cycle Cooling VIII.E-25 Water System (B2.1.10)Lubricating Oil Analysis VIII.A-9 (B2.1.23) and One-Time Inspection (B2.1.16)3.4.1.26 3.4.1.26 3.3.1.47 3.4.1.07 D D B B 3.4.1.28 B Closed Cycle Loss of m Cooling Water (Int)Closed Cycle Cracking Cooling Water (Int)Lubricating Oil (Int) Loss of m aterial 3.4.1.25 3.4.1.23 3.4.1.19 B B B A aterial Stainless Plant Indoor Air Steel (Ext)None None VIII.I-10 3.4.1.41 Enclosure 1 PG&E Letter DCL-10-091 Page 36 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous ONLY for Criterion 10 CFR 54.4(a)(2) (Continued)
Systems in scope Steel (Int)Orifice LBS Stainless Secondary Water Steel (Int)Stainless Steam (Int)Steel Cracking Orifice Orifice Piping Piping Piping Piping Piping Piping LBS LBS LBS LBS LBS LBS LBS LBS Stainless Steel Steam (Int)Carbon Steel Dry Gas (Int)Carbon Steel Carbon Steel Carbon Steel Plant Indoor Air (Ext)Plant Indoor Air (Int)Secondary Water (Int)Cracking Loss of material None Loss of material Loss of material Loss of material Loss of material Wall thinning Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None VIII.C-2 VIII.A-10 VIII.A-12 3.4.1.39 3.4.1.37 VIII.1-15 3.4.1.44 3.4.1.14 A E, 4 E, 4 A External Surfaces Monitoring Program (B2.1.20)Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.11.16)
Flow-Accelerated Corrosion (B2.1.6)VIII.H-7 3.4.1.28 B VIII.B1-7 3.4.1.30 B VIII.C-7 3.4.1.0440 A Carbon Steel Secondary Water (Int)VIII.E-34 3.4.1.04 A Carbon Steel Secondary Water (Int)VIII.E-35 3.4.1.29 B Enclosure 1 PG&E Letter DCL-10-091 Page 37 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4 (a)(2) (Continued)
Component Intended Material Evironment Aging Effect Aging Management NUREG- Table 1 Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Piping LBS Carbon Steel Steam (Int) Loss of material Piping Piping Piping Piping Piping Piping Piping Piping Piping Piping Piping LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS Carbon Steel Steam (Int)Carbon Steel Steam (Int)Carbon Steel Steam (Int)Wall thinning Loss of material Wall thinning None Loss of material Nickel Alloys Nickel Alloys Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Plant Indoor Air (Ext)Steam (Int)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Flow-Accelerated Corrosion (B2.1.6)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Flow-Accelerated Corrosion (B2.1.6)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling Water System (B2. 1.10)Closed-Cycle Cooling Water System (B2.1.10)None Lubricating Oil Analysis (B2.1.23) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.A-17 3.4.1.29 VIII.C-4 3.4.1.02 VIII.C-5 3.4.1.29 VIII.I-9 3.4.1.41 VIII.B1-1 3.4.1.37 VIII.E-24 3.4.1.25 B A B A E, 4 B B A B A A VIII.A-16 3.4.1.02 A Closed Cycle Loss of material Cooling Water (Int)Closed Cycle Cracking Cooling Water (Int)Dry Gas (Int) None Lubricating Oil (Int) Loss of material VIII.E-25 3.4.1.23 VIII.1-12 3.4.1.44 VIII.A-9 3.4.1.19 Plant Indoor Air (Ext)Secondary Water (Int)None Loss of material VIII.I-10 3.4.1.41 VIII.C-1 3.4.1.16 Enclosure 1 PG&E Letter DCL-10-091 Page 38 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a) (2) (Continued)
Component Type Intended Function Material Environment Piping Piping Pump Pump Pump Pump Pump Pump Pump LBS Stainless Secondary Water Cracking Steel (Int)LBS, SIA Stainless Secondary Water Cracking Steel (Int)LBS LBS LBS LBS LBS LBS LBS Carbon Steel Lubricating Oil (Int) Loss of material Carbon Steel Carbon Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Carbon Steel Carbon Steel Plant Indoor Air (Ext)Secondary Water (Int)Loss of material Loss of material Water Chemistry VIII.C-2 (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry VIII.D1-5 (B2.1.2) and One-Time Inspection (B2.1.16)Lubricating Oil Analysis VIII.A-14 (B2.1.23) and One-Time Inspection (B2.1.16)External Surfaces VIII.H-7 Monitoring Program (B2.1.20)Water Chemistry VIII.C-7 (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling VIII.E-24 Water System (B2.1.10)Closed-Cycle Cooling VIII.E-25 Water System (B2.1.10)Lubricating Oil Analysis VIII.A-9 (B2.1.23) and One-Time Inspection (B2.1.16)3.4.1.14 3.4.1.14 A A B 3.4.1.07 3.4.1.28 B 3.4.1.04 A Closed Cycle Loss of rr Cooling Water (Int)Closed Cycle Cracking Cooling Water (Int)Lubricating Oil (Int) Loss of rr aterial 3.4.1.25 3.4.1.23 B B aterial 3.4.1.19 B Regulators LBS Regulators LBS Plant Indoor Air (Ext)Closed Cycle Cooling Water (Int)Plant Indoor Air (Ext)None Loss of material Loss of material None VIII.l-10 3.4.1.41 A B Closed-Cycle Cooling VII.C2-14 Water System (B2.1.10)External Surfaces VIII.H-7 Monitoring Program (B2.1.20)3.3.1.47 3.4.1.28 B Enclosure 1 Section 3.3 PG&E Letter DCL-10-091 AGING MANAGEMENT OF AUXILIARY SYSTEMS Page 39 of 80 Table 3.3.2-1 8 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4 (a) (2) (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Rupture Disc Rupture Disc Sight Gauge Sight Gauge Sight Gauge Sight Gauge Sight Gauge Sight Gauge Sight Gauge Sight Gauge Sight Gauge LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS Carbon Steel Plant Indoor Air Carbon Steel Carbon Steel Carbon Steel Carbon Steel Glass Glass Stainless Steel Stainless Steel Stainless Steel Stainless Steel (Ext)Secondary Water (Int)Lubricating Oil (Int)Plant Indoor Air (Ext)Secondary Water (Int)Lubricating Oil (Int)Plant Indoor Air (Ext)Lubricating Oil (Int)Plant Indoor Air (Ext) _Secondary Water (Int)Secondary Water (Int)Loss of material Loss of material Loss of material Loss of material Loss of material None None Loss of material None Loss of material Cracking External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Lubricating Oil Analysis (B2.1.23) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None None Lubricating Oil Analysis (B2.1.23) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.116)_
VIII.H-7 VIII.C-7 VIII.A-14 VIII.H-7 VIII.B1-1 1 VIII. 1-6 VIII. 1-5 VIII.A-9 VIII.1-10 VIII.B1-4 VIII.1B31-5 3.4.1.28 3.4.1.04 3.4.1.07 3.4.1.28 3.4.1.04 3.4.1.40 3.4.1.40 3.4.1.19 3.4.1.41 3.4.1.16 3.4.1.14 Enclosure 1 PG&E Letter DCL-10-091 Page 40 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a) (2) (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Strainer LBS Stainless Plant Indoor Air None None VIII.I-10 3.4.1.41 A Strainer Strainer Tank Tank Tank Tank Tank LBS LBS LBS LBS LBS LBS LBS Stainless Steel Carbon Steel Carbon Steel Steel Stainless Steel (Ext)Steam (Int)Steam (Int)Closed Cycle Cooling Water (Int)Dry Gas (Int)Cracking Loss of material Loss of material None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling Water System (B2.1.10)None VIII.A-10 3.4.1.39 VIII.A-12 3.4.1.37 VII.C2-14 3.3.1.47 VIII.1-15 3.4.1.44 E, 4 E, 4 B A Carbon Steel Lubricating Oil (Int) Loss of material Carbon Steel Carbon Steel Plant Indoor Air (Ext)Plant Indoor Air (Int)Loss of material Loss of material Loss of material Lubricating Oil Analysis VIII.A-14 (B2.1.23) and One-Time Inspection (B2.1.16)External Surfaces VIII.H-7 Monitoring Program (B2.1.20)Inspection of Internal VIII.Bi1-7 Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)Inspection of Internal VIII.B1-7 Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)3.4.1.07 D 3.4.1.28 B 3.4.1.30 D B Tank LBS Carbon Steel Plant Indoor Air (Int)3.4.1.30 Enclosure 1 PG&E Letter DCL-10-091 Page 41 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a)(2) (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Tank LBS Carbon Steel Secondary Water Loss of material Water Chemistry VIII.C-7 3.4.1.04 C (Int)Secondary Water (Int)Tank Tank Tank Tank Tank Tank LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS Carbon Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Carbon Steel Carbon Steel Loss of material (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry VIII.E-34 (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling VIII.E-24 Water System (B2.1.10)Closed-Cycle Cooling VIII.E-25 Water System (B2.1.10)3.4.1.04 3.4.1.25 3.4.1.23 C D D Closed Cycle Loss of material Cooling Water (Int)Closed Cycle Cracking Cooling Water (Int)Dry Gas (Int) None Lubricating Oil (Int) Loss of material Plant Indoor Air None (Ext)Plant Indoor Air Loss of material (Ext)None VIII.1-12 3.4.1.44 C Lubricating Oil Analysis VIII.A-9 (B2.1.23) and One-Time Inspection (B2.1.16)3.4.1.19 B None VIII.I-10 3.4.1.41 C Test Connection Test Connection Test Connection Thermowell Thermowell Secondary Water (Int)Loss of material Loss of material Carbon Steel Steam (Int)External Surfaces VIII.H-7 Monitoring Program (B2.1.20)Water Chemistry VIII.C-7 (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry VIII.C-4 (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling VIII.E-24 Water System (B2.1.10)Closed-Cycle Cooling VIII.E-25 Water System (B2.1.10)3.4.1.28 B 3.4.1.04 A 3.4.1.02 A Stainless Steel Stainless Steel Closed Cycle Loss of material Cooling Water (Int)Closed Cycle Cracking Cooling Water (Int)3.4.1.25 3.4.1.23 B B Enclosure 1 PG&E Letter DCL-10-091 Page 42 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a) (2) (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table- 1 Item Notes Type Function Requiring Program 1801 Vol.I L Management 2 Item Thermowell LBS Stainless Dry Gas (Int) None None VIII.l-12 3.4.1.44 A Thermowell Trap Trap Trap Trap Trap Trap Trap Trap Tubing Tubing LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS Steel Stainless Steel Carbon Steel Carbon Steel Plant Indoor Air (Ext)Dry Gas (Int)Plant Indoor Air (Ext)None None None None VIII.I-10 3.4.1.41 VII1.1-15 3.4.1.44 A A Carbon Steel Steam (Int)Carbon Steel Steam (Int)Loss of material Loss of material Loss of material None External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None VIII.H-7 3.4.1.28 B VIII.A-16 3.4.1.02 VIII.C-4 3.4.1.02 A A A A Stainless Steel Stainless Steel Stainless Steel Stainless Steel Carbon Steel Carbon Steel Dry Gas (Int)Plant Indoor Air (Ext)Steam (Int)Steam (Int)Closed Cycle Cooling Water (Int)Dry Gas (Int)VII1.1-12 3.4.1.44 VIII.I-10 3.4.1.41 None None Cracking Loss of material Loss of material None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling Water System (B2.1.10)None VIII.A-10 3.4.1.39 E, 4 VIII.A-12 3.4.1.37 E, 4 VII.C2-14 3.3.1.47 B VII1.1-15 3.4.1.44 A Enclosure 1 PG&E Letter DCL-10-091 Page 43 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a) (2) (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Tubing LBS Carbon Steel Lubricating Oil (Int) Loss of material Tubing Tubing Tubing Tubing Tubing Tubing Tubing Tubing Tubing Tubing LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS Carbon Steel Carbon Steel Plant Indoor Air (Ext)Secondary Water (Int)Loss of material Loss of material Loss of material Carbon Steel Steam (Int)Lubricating Oil Analysis VIII.A-14 (B2.1.23) and One-Time Inspection (B2.1.16)External Surfaces VIII.H-7 Monitoring Program (B2.1.20)Water Chemistry VIII. E-34 (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry VIII.A-16 (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling VIII.E-24 Water System (B2.1.10)Closed-Cycle Cooling VIII.E-25 Water System (B2.1.10)None VIII.1-12 Lubricating Oil Analysis VI II.A-9 (B2.1.23) and One-Time Inspection (B2.1.16)None VIII.I-10 3.4.1.28 B 3.4.1.04 A 3.4.1.07 B Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Closed Cycle Loss of material Cooling Water (Int)Closed Cycle Cracking Cooling Water (Int)Dry Gas (Int) None Lubricating Oil (Int) Loss of material 3.4.1.02 3.4.1.25 3.4.1.23 3.4.1.44 A B B A 3.4.1.19 B Plant Indoor Air (Ext)Secondary Water (Int)None Loss of material 3.4.1.41 Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.E-29 3.4.1.16 VIII.E-30 3.4.1.14 A A A Stainless Secondary Water Cracking Steel (Int)
Enclosure 1 PG&E Letter DCL-10-091 Page 44 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a) (2) (Continued)
Component Intended Material Environment Aging Effect~ Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Tubing LBS Stainless Steam (Int) Cracking Water Chemistry VIII.A-10 3.4.1.39 E, 4 Steel Stainless Steel Tubing Valve Valve Valve Valve LBS LBS LBS LBS LBS Steam (Int)Loss of material None (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None VIII.A-12 3.4.1.37 E, 4 A Carbon Steel Dry Gas (Int)VIII.1-15 3.4.1.44 Carbon Steel Lubricating Oil (Int) Loss of material Carbon Steel Carbon Steel Carbon Steel Carbon Steel Plant Indoor Air (Ext)Plant Indoor Air (Int)Secondary Water (Int)Secondary Water (Int)Loss of material Loss of material Loss of material Loss of material Loss of material Lubricating Oil Analysis VIII.A-14 (B2.1.23) and One-Time Inspection (B2.1.16)External Surfaces VIII.H-7 Monitoring Program (B2.1.20)Inspection of Internal VIII.Bi1-7 Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)Water Chemistry VIII.C-7 (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry VIII.E-34 (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry VIII.A-16 (B2.1.2) and One-Time Inspection (B2.1.16)3.4.1.07 3.4.1.28 3.4.1.30 B B B A A A Valve Valve Valve LBS LBS LBS 3.4.1.04 3.4.1.04 3.4.1.02 Carbon Steel Steam (Int)
Enclosure 1 PG&E Letter DCL-10-091 Page 45 of 80 Section 3.3 AGING MANAGEMENT OF AUXILIARY SYSTEMS Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a) (2) (Continued)
Water Chemistry VIII.C-4 (B2.1.2) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling VIII.E-16 Water System (B2.1.10)None VIII.I-3 Valve LBS Copper Alloy Closed Cycle Loss of material Cooling Water (Int)Valve LBS Copper Alloy Dry Gas (Int) None 3.4.1.26 B 3.4.1.44 A 3.4.1.18 B Valve Valve Valve Valve Valve Valve Valve Valve Valve Valve LBS LBS LBS LBS LBS LBS LBS LBS LBS LBS Copper Alloy Lubricating Oil (Int) Loss of material Copper Alloy (> 15% Zinc)Copper Alloy (> 15% Zinc)Copper Alloy (> 15% Zinc)Copper Alloy (> 15% Zinc)Stainless Steel Stainless Steel Stainless Steel Stainless Steel Closed Cycle Cooling Water (Int)Closed Cycle Cooling Water (Int)Dry Gas (Int)Loss of material Loss of material None Lubricating Oil Analysis VIII.A-3 (B2.1.23) and One-Time Inspection (B2.1.16)Closed-Cycle Cooling VIII.E-16 Water System (B2.1.10)Selective Leaching of VIII.E-19 Materials (B2.1.17)None VIII.I-3 3.4.1.26 B A 3.4.1.35 3.4.1.44 A Plant Indoor Air None (Ext)Closed Cycle Loss of material Cooling Water (Int)Closed Cycle Cracking Cooling Water (Int)Dry Gas (Int) None Lubricating Oil (Int) Loss of material None VIII.I-2 3.4.1.41 Closed-Cycle Cooling VIII.E-24 Water System (B2.1.10)Closed-Cycle Cooling VIII.E-25 Water System (B2. 1.10)None VIII.1-12 Lubricating Oil Analysis VIII.A-9 (B2.1.23) and One-Time Inspection (B2.1.16)None VIII.I-10 3.4.1.25 3.4.1.23 A B B 3.4.1.44 A 3.4.1.19 B Stainless Plant Indoor Air Steel (Ext)None 3.4.1.41 A Enclosure 1 Section 3.3 PG&E Letter DCL-10-091 AGING MANAGEMENT OF AUXILIARY SYSTEMS Page 46 of 80 Table 3.3.2-18 Auxiliary Systems -Summary of Aging Management Evaluation 
-Miscellaneous Systems in scope ONLY for Criterion 10 CFR 54.4(a)(2) (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table 1 ItemMNotes Type Function Requiring Program 1801 Vol.Managemen 2 Item Valve LBS Stainless Secondary Water Loss of material Water Chemistry VIII.C-1 3.4.1.16 A Steel (Int) (B2.1.2) and One-Time Inspection (B2.1.16)Valve LBS Stainless Secondary Water Cracking Water Chemistry VIII.C-2 3.4.1.14 A Steel (Int) (B2.1.2) and One-Time Inspection (B2.1.16)Valve LBS Stainless Secondary Water Loss of material Water Chemistry VIII.E-29 3.4.1.16 A Steel (Int) (B2.1.2) and One-Time Inspection (B2.1.16)Valve LBS Stainless Secondary Water Cracking Water Chemistry VIII.E-30 3.4.1.14 A Steel (Int) (B2.1.2) and One-Time Inspection (B2.1.16)
Enclosure 1 PG&E Letter DCL-10-091 Page 47 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.1 Summary of Aging Management Evaluations in Chapter VIII of NUREG-1801 for Steam and Power Conversion System Item Component Type Aging Effect / Mechanism Aging Management Further Discussion Number Program Evaluation Recommended 3 4 1 19 Stainless steel ninino Loss of material due to Dittina. Lubricatina Oil Analvsis Yes Consistent with NUREG-piping components, piping elements, and heat exchanger components exposed to lubricating oil crevice, and microbiologically-influenced corrosion (B2.1.23) and One-Time Inspection (82.1.16)1801 with aging management program exceptions. 
**The aging management program(s) with exceptions to NUREG-1801 include: Lubricating Oil Analysis (B2.1.23) 
**See further evaluation in subsection 3.4.2.2.8.
Not applicable.
DCPP has no'i scope stainless steel components exposed to lubee Gil in the steam and power ccnvcrsion systems, so the applicable NI IREG 1801 lines were not used.See further evaluation in Section 3.4.2.2.8.
Enclosure 1 PG&E Letter DCL-10-091 Page 48 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.1 Summary of Aging Management Evaluations in Chapter VIII of NUREG-1801 for Steam and Power Conversion System (Continued)
Item Component Type Aging Effect, Mechanism ging Management Further Discussion Number Program Evaluation Recommended 3.4.1.23 Stainless steel piping, Cracking due to stress Closed-Cycle Cooling Water No Consistent with NUREG-piping components, and piping elements exposed to closed-cycle cooling water>60 0 C (>140 0 F)corrosion cracking System (B2.1.10)1801 with aging management program exceptions. 
**The aging management program(s) with exceptions to NUREG-1801 include: Closed-Cycle Cooling Water System (B2.1.10)
Net-appliable-DCPP has no in scope components,orpin
............ 
-.... ......... -i{ l[-ut]cGcl coln 'ate >60 0 C (Io 0 F), so the applicable NUREG 1801 line Was not used.
Enclosure 1 PG&E Letter DCL-10-091 Page 49 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.1 Summary of Aging Management Evaluations in Chapter VIII of NUREG-1801 for Steam and Power Conversion System (Continued)
Item Component Type Aging Effect / Mechanism Aging Management Further Discussion Number Program Evaluation Recommended 3.4.1.24 Steel heat exchanger components exposed to closed cycle cooling water Loss of material due to general, pitting, crevice, and galvanic corrosion Closed-Cycle Cooling Water No System (B2.1.10)Consistent with NUREG-1801 with aging management program exceptions. 
**The aging management program(s) with exceptions to NUREG-1801 include: Closed-Cycle Cooling Water System (B2.1.10)
Notappli~able-neat cxcnanger comnponent exposed to closed cYcle cooling wateF in the steam and power Govrso systcmns, so the applic~ible used~
Enclosure 1 Section 3.4 PG&E Letter DCL-10-091 AGING MANAGEMENT OF STEAM AND Page 50 of 80 POWER CONVERSION SYSTEM Table 3.4.2-1 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Turbine Steam Supply System Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function IRequiring Program 1801 Vol.(Et)Management 2 Item Expansion LBS Stainless Plant Indoor Air None Joint Expansion Joint Expansion Joint Flow Element Flow Element Flow Element Flow Element Flow Indicator Flow Indicator LBS LBS LBS, PB, TH LBS, PB, TH LBS, PB, TH LBS, PB, TH LBS LBS Steel Stainless Steel Stainless Steel Carbon Steel Carbon Steel Stainless Steel Stainless Steel Carbon Steel (Ext)Steam (Int)Steam (Int)Plant Indoor Air (Ext)Steam (Int)Steam (Int)Steam (Int)Plant Indoor Air (Ext)Cracking Loss of material Loss of material Loss of material Cracking Loss of material Loss of material Loss of material None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.11.20)
Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.I-10 3.4.1.41 A VIII.A-10 VIII.A-12 VIII.H-7 VIII.A-16 VIII.A-10 VIII.A-12 VIII.H-7 VIII.D1-8 3.4.1.39 3.4.1.37 3.4.1.28 3.4.1.02 3.4.1.39 3.4.1.37 3.4.1.28 3.4.1.04 E, 4 E, 4 B A E, 4 E, 4 B A Carbon Steel Secondary Water (Int)
Enclosure 1 PG&E Letter DCL-10-091 Page 51 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-1 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Turbine Steam Supplv System (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.IManagement 2 Item Flow Indicator LBS Glass Plant Indoor Air None None VIII.I-5 3.4.1.40 A Flow Indicator Flow Indicator Flow Indicator Flow Indicator Heat Exchanger (Sample Cooler)Heat Exchanger (Sample Cooler)Heat Exchanger (Steam Generator Blowdown)Heat Exchanger (Steam Generator Blowdown)LBS LBS LBS LBS LBS LBS LBS LBS Glass Stainless Steel Stainless Steel (Ext)Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)None None None None VIII.I-8 3.4.1.40 A VIII.1-10 3.4.1.41 A VIII.D1-4 3.4.1.16 A Stainless Secondary Water Steel (Int)Stainless Steel Stainless Steel Carbon Steel Steam (Int)Steam (Int)Plant Indoor Air (Ext)Loss of material Cracking Cracking Loss of material Loss of material Loss of material Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.D1-5 VIII.A-10 3.4.1.14 3.4.1.39 A E, 4 VIII.A-12 3.4.1.37 E, 4 VIII.H-7 3.4.1.28 B Carbon Steel Steam (Int)VIII.A-16 3.4.1.02 A Enclosure 1 Section 3.4 PG&E Letter DCL-10-091 AGING MANAGEMENT OF STEAM AND Page 52 of 80 POWER CONVERSION SYSTEM Table 3.4.2-1 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Turbine Steam Supply System (Continued)
Component Intended Material Environment Aging Effect Aging Management Type Function Requiring Program Management Heat LBS Exchanger Carbon Steel Plant Indoor Air (Turbine Bldg)Heat Exchanger (Turbine Bldg)Heat Exchanger (Turbine Bldg)Orifice Orifice Orifice Orifice Piping Piping Piping LBS LBS LBS LBS LBS LBS LBS LBS LBS Carbon Steel Carbon Steel Carbon Steel Carbon Steel Stainless Steel Stainless Steel Nickel Alloys Nickel Alloys Stainless Steel (Ext)Secondary Water (Int)Steam (Int)Plant Indoor Air (Ext)Steam (Int)Steam (Int)Steam (Int)Plant Indoor Air (Ext)Steam (Int)Plant Indoor Air (Int)Loss of material Loss of material Loss of material Loss of material Loss of material Cracking Loss of material None Loss of material None External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None NUREG-1801 Vol.2 Item VIII.H-7 VIII.B1-11 VIII.A-16 VIII.H-7 VIII.A-16 VIII.A-10 VIII.A-12 VIII.1-9 VIII.B1-1 None Table I Item 3.4.1.28 3.4.1.04 3.4.1.02 3.4.1.28 3.4.1.02 3.4.1.39 3.4.1.37 3.4.1.41 3.4.1.37 None otes N D C A B A E, 4 E, 4 A E, 4 G otes Enclosure 1 PG&E Letter DCL-10-091 Page 53 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-1 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Turbine Steam Supply System (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.TManagement 2 Item Piping LBS Stainless Steam (Int) Cracking Water Chemistry VIll.A-la 3.4.1.39 E, 4 Steel Piping Sight Gauge Sight Gauge Sight Gauge Sight Gauge Sight Gauge Sight Gauge LBS LBS LBS LBS LBS LBS LBS Stainless Steel Carbon Steel Steam (Int)Plant Indoor Air (Ext)Loss of material Loss of material Carbon Steel Sodium Hydroxide Loss of material (Int)Carbon Steel Sulfuric Acid (Int) Loss of material Glass Plant Indoor Air None (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)None Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1 .22)None External Surfaces Monitoring Program (B2.1.20)VIII.A-12 3.4.1.37 VIII.H-7 3.4.1.28 B E, 4 None None None None G G VIII.I-5 3.4.1.40 A Glass Glass (Ext)Sodium Hydroxide (Int)Loss of material None None None None G G Sulfuric Acid (Int) None Strainer FIL, LBS, PB Carbon Steel Plant Indoor Air (Ext)Loss of material VIII.H-7 3.4.1.28 B Enclosure 1 PG&E Letter DCL-1 0-091 Page 54 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-1 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Turbine Steam Supply System (Continued)
Component Intended Material Environment
[ Aging Effect Aging Management NUREG- Table I Item Notes Type Function " Requiring Program 1801 Vol.gManagement 2 Item Strainer LBS Carbon Steel Steam (Int) Loss of material Tank LBS Carbon Steel Plant Indoor Air (Int)Tank Test GOR~e~tIG Test;Gne~eto Test Genineotio Test GGRe~neie LBS Carbon Steel Steam (Int)pa Stainless Stee4 P8 Stainless Steel P9 Stainless Steel P9 Stainless Steel LBS Carbon Steel Plant !ndoer Air (F*t)SeGG~dawy WateF Steam (nt Atmosphere/
Weather (Ext)Loss of material Loss of material None Loss of meriae Loss of material Loss of material Loss of material None Water Chemistry (B2.1.2) and One-Time Inspection (82.1.16)Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)NOee WateiF-Ghernistfy (82.1.2) and One Time Inspection (12.1.16)Water Ghemistry (B2.1.2) and One Time Inspection (82.1.16)WN he msry (92.1.2) and One Time Inspection (82.1.16)External Surfaces Monitoring Program (132.1.20)
Water Chemistry (832.1.2) and One-Time Inspection (832.1.16)
None VIII.A-16 3.4.1.02 A VIII.B1-7 3.4.1.30 D VIII.A-16 3.4.1.02 VHU-i- 3.4.1-44 A A VIW-.-DI 4 .4. 6 A VIII.A410 3.4.1.39 V11 -142 3A.-1.37 E-&#xfd;-4 Trap Trap Trap VIII.H-8 3.4.1.28 B LBS LBS Carbon Steel Steam (Int)Stainless Plant Indoor Air Steel (Ext)VIII.A-16 3.4.1.02 VIII.I-10 3.4.1.41 A A Enclosure 1 PG&E Letter DCL-10-091 Page 55 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-1 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Turbine Steam Supply System (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function lmRequiring Program 1801 Vol.IManagement 2 Item Trap LBS Stainless Steam (Int) Cracking Water Chemistry Vill.A-10 3.4.1.39 E, 4 Steel Trap Turbine Turbine Valve Valve LBS Stainless Steam (Int)Steel LBS, PB Carbon Steel Plant Indoor Air (Ext)LBS LBS, PB, SIA Carbon Steel Steam (Int)Loss of material Loss of material Loss of material Loss of material None (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)None VIII.A-12 VIII.H-7 3.4.1.28 B VIII.A-16 3.4.1.02 C VIII.H-8 3.4.1.28 B VIII.1-15 3.4.1.44 A VIII.I-2 3.4.1.41 A 3.4.1.37 E, 4 Carbon Steel Atmosphere/
Weather (Ext)LBS, PB Carbon Steel Dry Gas (Int)Valve Valve Valve Valve Valve LBS LBS LBS LBS Copper Alloy Copper Alloy Stainless Steel Stainless Steel Stainless Steel Plant Indoor Air (Ext)Secondary Water (Int)Dry Gas (Int)Plant Indoor Air (Int)Steam (Int)None None Loss of material Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None VIII.A-5 3.4.1.15 A None None VIII.1-12 3.4.1.44 A None None None G LBS, PB, SIA Cracking Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.A-10 3.4.1.39 E, 4 Enclosure 1 PG&E Letter DCL-10-091 Page 56 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-1 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Turbine Steam LBS, PB, Stainless Steam (Int) Loss of material Water Chemistry SIA Steel (B2.1.2) and One-Time Inspection (B2.1.16)
Enclosure 1 PG&E Letter DCL-10-091 Page 57 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-2 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Auxiliary Steam Steel (Ext)Heat LBS, SIA, Carbon Steel Closed Cycle Loss of material Closed-Cycle Cooling VIII.G-5 3.4.1.243-_Z4 B Exchanger SS Cooling Water (Int) Water System (B2.1.10y V -F29 48 (Aux Steam Drain Rec Vent Cond)Meat Heat Exchanger (CO2 Vaporizer)
Heat Exchanger (C02 Vaporizer)
Heat Exchanger (Reboiler)
Heat Exchanger (Reboiler)
Heater LBSSA abRSe Sta I)LBS LBS LBS LBS LBS Carbon Steel Plant Indoor Air (Ext)Carbon Steel Steam (Int)Carbon Steel Plant Indoor Air (Ext)Carbon Steel Steam (Int)Carbon Steel Plant Indoor Air (Ext)Wall thining Loss of material Loss of material Loss of material Loss of material Loss of material F=o'' Acccleratcd Corrosion (132. 1.6)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)V!!.B -1 3.4.1.2 B VIII.H-7 3.4.1.28 B VIII.B1-8 3.4.1.37 E, 6 VIII.H-7 3.4.1.28 B VIII.B1-8 3.4.1.37 E, 6 VIII.H-7 3.4.1.28 B Enclosure 1 PG&E Letter DCL-10-091 Page 58 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-2 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Auxiliary Steam System (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table 1 Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Heater LBS Carbon Steel Steam (Int) Loss of material Piping P*"9 Piping Piping Piping Piping LBS, SIA Carbon Steel Atmosphere/
Weather (Ext)LBs Ga~bon-~e Demniner-alized Loss of material Loss of material Loss of material LBS, SIA Carbon Steel Secondary Water (Int)LBS, SIA Carbon Steel Secondary Water Wall thinning (Int)LBS LBS L-BS Stainless Steel Raw Water (Int)Loss of material Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (82.1.20)Water-Ghemis" (132.1.2) and Onc Time inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (82.1.16)Flow-Accelerated Corrosion (82.1.6)Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (82.1.22)Water Chemistry (B2.1.2) and One-Time Inspection (82.1.16)Inspection of Internal Miscellaneous Piping and Duoting Components (132.1.&#xfd;22)
Gae hemistj (82.1.2) and Ono Time In!spection (132.1.46)
Stainless Secondary Water Loss of material Steel (Int)Stainless Stearn ({tn steeI VI1.91 11 3.4.1.VIII.B1-11 3.4.1.04 VIII.B1-8 3.4.1.37 E, 6 VIII.H-8 3.4.1.28 B A A VIII.G-39 3.4.1.29 B VII.H2-18 3.3.1.8014 E, 5 VIWI.G 30 -VIII.B1-4 3.4.1.16 EA Enclosure 1 PG&E Letter DC Page 59 of 80 Table 3.4.2-2 Section 3.4 L-10-091 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Auxiliary Steam System (Continued)
Aging Management Program w Pump Strainer Test Connection Valve Valve Valve Valve LBS LBS LBS LBS LBS LBS LBS Stailn~ess Steel Carbon Steel Carbon Steel Carbon Steel Cast Iron (Gray Cast Iron)Cast Iron (Gray Cast Iron)Copper A44y (Aluinnum->
Stainless Steel Secondary Water (Int)Steam (Int)Steam (Int)Plant Indoor Air (Ext)Secondary Water (Int)(n/.Secondary Water (Int)Loss of material Loss of material Loss of material Loss of material Loss of material Loss of material Nene Loss of material Water Ghemistry (B2.1.2) and One Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B32.1.2) and One-Time Inspection (B32.1.16)
External Surfaces Monitoring Program (B2.1.20)Selective Leaching of Materials (B2.1.17)Noem Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.G-38 VIII.1B1-8 VIII.1B1-8 None VIII.G-26 V1w -a VIII.B1-4 3.4.1.04 3.4.1.37 3.4.1.37 None 3.4.1.36 3.4.1.44 3.4.1.16 A E, 6 E, 6 G A A A Enclosure 1 PG&E Letter DCL-10-091 Page 60 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Notes for Table 3.4.2-2: Standard Notes: r /", , + ;+L, IDr"t2- 4-1 0 n,. f;+ .-,+ l nnwhrr'nn mnt and to NUREG 1801 AMP.G Environment not in NUREG-1801 for this component and material.H Aging effect not in NUREG-1 801 for this component, material and environment combination.
aging effect. AMP takes some eXceptions Plant Specific Notes: 1 The Loss of Preload aging effect is not identified in NUREG-1 801 for this component, material, and environment combination.
Loss of preload is managed by the Bolting Integrity (B2.1.7) AIMP..ompon.nt is abandoned in place; thus the Wate Qhemist, ' aging mnanaaement Droa-ram.
does not am)ly.
Enclosure 1 Section 3.4 PG&E Letter DCL-10-091 AGING MANAGEMENT OF STEAM AND Page 61 of 80 POWER CONVERSION SYSTEM Table 3.4.2-3 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Feedwater System Component Type Filter Filter Filter Filter Filter Flow Element Flow Element Flow Element Heat Exchanger (Feedwater Heater)Intended Material Function LBS Carbon Steel LBS Carbon Steel LBS Stainless Steel LBS Stainless Steel LBS Stainless Steel LBS, PB, Carbon Steel TH LBS, PB, Carbon Steel TH LBS, PB, Stainless TH Steel LBS, SIA Carbon Steel Environment Plant Indoor Air (Ext)Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)Secondary Water (Int)Plant Indoor Air (Ext)Aging Effect Requiring Management Loss of material Loss of material None Loss of material Cracking Loss of material Loss of material Cracking Loss of material Aging Management Program External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)NUREG-1801 Vol.2 Item VIII.H-7 VIII.D1-8 VIII.1-10 VIII.D1-4 VIII.D1-5 VIII.H-7 VIII.D1-8 VIII.D1-5 VIII.H-7 Table I Item 3.4.1.28 3.4.1.04 3.4.1.41 3.4.1.16 3.4.1.14 3.4.1.28 3.4.1.04 3.4.1.14 3.4.1.28 1 Notes I Enclosure 1 PG&E Letter DCL-10-091 Page 62 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-3 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Feedwater Heat LBS, SIA Carbon Steel Secondary Water Loss of material Water Chemistry Exchanger (Int) (B2.1.2) and One-Time (Feedwater Inspection (B2.1.16)Heater)Heat LBS Stainless Closed Cycle Loss of material Closed-Cycle Cooling Exchanger Steel Cooling Water (Int) Water System (B2.1.10O (Sample VIII.G-2 3.4.1.25 Cooler)Heat Exchanger (Sample Cooler)Orifice Orifice Orifice Piping Piping Piping LBS LBS LBS LBS LBS LBS LBS Stainless Plant Indoor Air Steel (Ext)None None VIII.1-10 3.4.1.41 VIII.I-10 3.4.1.41 VIII.D1-4 3.4.1.16 Stainless Steel Stainless Steel Plant Indoor Air (Ext)Secondary Water (Int)None None Stainless Secondary Water Steel (Int)Loss of material Cracking None Loss of material Cracking Stainless Steel Stainless Steel Plant Indoor Air (Ext)Secondary Water (Int)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.D1-5 3.4.1.14 VIII.I-10 3.4.1.41 VIII.D1-4 3.4.1.16 Stainless Secondary Water Steel (Int)VIII.D1-5 3.4.1.14 Enclosure 1 PG&E Letter DCL-10-091 Page 63 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-3 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Feedwater (Ext)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Pump LBS Carbon Steel Pump Pump Pump Valve Valve Valve LBS, SIA Stainless Steel Cast Austenitic LBS, SIA Stainless Steel Cast Austenitic LBS, SIA Stainless Steel Cast Austenitic LBS, PB Stainless Steel LBS, PB Stainless Steel Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)None Loss of material VIII.D1-8 3.4.1.04 A None VIII.I-10 3.4.1.41 A Loss of material Cracking None Loss of material Cracking Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.D1-4 3.4.1.16 A VIII.D1-5 3.4.1.14 A VIII.I-10 3.4.1.41 A VIII.D1-4 3.4.1.16 A A LBS, PB Stainless Secondary Water Steel (Int)VIII.D1-5 3.4.1.14 Enclosure 1 PG&E Letter DC Page 64 of 80 Table 3.4.2-4 Section 3.4 L-10-091 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate Svstem Requiring lanagement ing Managei Program 1801 Vol.2 Item Closure Bolting LBS Stainless Steel Demineralizer LBS Carbon Steel Demineralizer LBS Carbon Steel Plant Indoor Air (Ext)Plant Indoor Air (Ext)Plant Indoor Air (Int)Loss of preload Loss of material Loss of material Demineralizer Ejector Ejector Ejector Ejector Ejector Filter LBS LBS LBS LBS LBS LBS LBS Carbon Steel Carbon Steel Carbon Steel Stainless Steel Stainless Steel Stainless Steel Carbon Steel Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)Secondary Water (Int)Plant Indoor Air (Ext)Loss of material Loss of material Loss of material None Loss of material Cracking Loss of material Bolting Integrity (B2.1.7)External Surfaces Monitoring Program (B2.1.20)Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)None VIII.H-7 VIII.G-34 3.4.1.28 3.4.1.30 VIII. E-34 VIII.H-7 VIII. E-34 VIII.1-10 VIII.E-29 VIII.E-30 VIII.H-7 3.4.1.04 3.4.1.28 3.4.1.04 3.4.1.41 3.4.1.16 3.4.1.14 3.4.1.28 A B A A A A B B D Enclosure 1 PG&E Letter DCL-10-091 Page 65 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate System (Continued)
Filter Filter Filter Flexible Hoses Flexible Hoses Flexible Hoses Flow Element Flow Element Flow Element LBS LBS LBS LBS LBS LBS LBS LBS LBS Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Carbon Steel Carbon Steel Stainless Steel (Int)Plant Indoor Air (Ext)Secondary Water (Int)Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)Plant Indoor Air (Ext)Loss of material None Loss of material Cracking None Loss of material Cracking Loss of material Loss of material None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1,16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None VIII. E-34 VIII.1-10 VIII.E-29 VIII. E-30 VIII.1-10 VIII.E-29 VIII. E-30 VIII.H-7 VIII. E-34 VIII.1-10 3.4.1.04 3.4.1.41 3.4.1.16 3.4.1.14 3.4.1.41 3.4.1.16 3.4.1.14 3.4.1.28 3.4.1.04 3.4.1.41 A A A A A A B A A Enclosure 1 PG&E Letter DCL-10-091 Page 66 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate g Management Program NUREG-1801 Vol.2 Item Table I Item Notes Flow Element LBS Stainless Secondary Water Loss of material Steel (Int)Flow Element Flow Indicator Flow Indicator Flow Indicator Flow Indicator Flow Indicator Flow Indicator Flow Indicator Heat Exchanger (Caustic Dilution Hx -Shell)LBS LBS LBS LBS LBS LBS LBS LBS LBS Stainless Secondary Water Steel (Int)Carbon Steel Plant Indoor Air (Ext)Cracking Loss of material Loss of material None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None VIII.E-29 3.4.1.16 A VIII.E-30 3.4.1.14 A Carbon Steel Glass Glass Stainless Steel Stainless Steel Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)VIII.H-7 3.4.1.28 B VIII.E-34 3.4.1.04 A VIII.I-5 3.4.1.40 A VIII.I-8 3,4.1.40 A None None None None VIII.I-10 3.4.1.41 A Stainless Secondary Water Steel (Int)Loss of material Cracking Loss of material Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)VIII.E-29 3.4.1.16 A VIII.E-30 3.4.1.14 A B Carbon Steel Plant Indoor Air (Ext)VIII.H-7 3.4.1.28 Enclosure 1 PG&E Letter DCL-10-091 Page 67 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate Exchanger (Caustic Dilution Hx -Shell)Heat Exchanger (Caustic Dilution Hx -Tubesheet)
Heat Exchanger (Caustic Dilution Hx -Tubesheet)
Heat Exchanger (Condensate Cooler -Shell)Heat Exchanger (Condensate Cooler -Shell)Heat Exchanger (Feedwater Heater -Head)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)LBS LBS LBS LBS LBS Copper Alloy Secondary Water Loss of material (Ext)Copper Alloy Steam (Int)Carbon Steel Carbon Steel Carbon Steel Plant Indoor Air (Ext)Secondary Water (Int)Plant Indoor Air (Ext)Loss of material Loss of material Loss of material Loss of material Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.11.20)
Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)VIII.A-5 3.4.1.15 C VIII.A-5 3.4.1.15 C VIII.H-7 3.4.1.28 B VIII.E-37 3.4.1.03 A VIII.H-7 3.4.1.28 B Enclosure 1 PG&E Letter DCL-1 0-091 Page 68 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate Heat LBS Carbon Steel Secondary Water Loss of material Water Chemistry Exchanger (Int) (B2.1.2) and One-Time (Feedwater Inspection (B2.1.16)Heater -Head)Heat Exchanger (Feedwater Heater -Shell)Heat Exchanger (Feedwater Heater -Shell)Heat Exchanger (Feedwater Heater -Shell)Heat Exchanger (Gland Steam Condenser 
-Head)Heat Exchanger (Gland Steam Condenser 
-Head)LBS LBS LBS LBS LBS Carbon Steel Carbon Steel Plant Indoor Air (Ext)Secondary Water (Int)Loss of material Carbon Steel Steam (Int)Loss of material Loss of material Loss of material External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.H-7 3.4.1.28 VIII.E-37 3.4.1.03 VIII.A-16 3.4.1.02 VIII.H-7 3.4.1.28 VIII.E-37 3.4.1.03 A A B A B Carbon Steel Carbon Steel Plant Indoor Air (Ext)Secondary Water Loss of material (Int)
Enclosure 1 PG&E Letter DCL-10-091 Page 69 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate System (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table 1 Item Notes Type Function Requiring Program 1801 Vol.Management 2 Itemn Heat LBS Carbon Steel Plant Indoor Air Loss of material External Surfaces VIII.H-7 3.4.1.28 B Exchanger (Gland Steam Condenser 
-Shell)Heat Exchanger (Gland Steam Condenser 
-Shell)Heat Exchanger (Heaters Drain Cooler -Head)Heat Exchanger (Heaters Drain Cooler -Head)Heat Exchanger (Heaters Drain Cooler -Shell)Heat Exchanger (Heaters Drain Cooler -Shell)Heat Exchanger (Hydrogen Cooler -Head)(Ext)LBS LBS LBS LBS LBS LBS Carbon Steel Steam (Int)Carbon Steel Carbon Steel Carbon Steel Carbon Steel Carbon Steel Plant Indoor Air (Ext)Secondary Water (Int)Plant Indoor Air (Ext)Secondary Water (Int)Plant Indoor Air (Ext)Loss of material Loss of material Loss of material Loss of material Loss of material Loss of material Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)VIII.H-7 3.4.1.28 B VIII.E-37 3.4.1.03 A VIII.H-7 3.4.1.28 B VIII.E-37 3.4.1.03 A VIII.H-7 3.4.1.28 B VIII.A-16 3.4.1.02 A Enclosure 1 PG&E Letter DCL-10-091 Page 70 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate System (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Heat LBS Carbon Steel Secondary Water Loss of material Water Chemistry VIII.E-37 3.4.1.03 A Exchanger (Hydrogen Cooler -Head)Heat Exchanger (Hydrogen Cooler -Shell)Heat Exchanger (Hydrogen Cooler -Shell)Heat Exchanger (Main Condenser)
Heat Exchanger (Main Condenser)
Heat Exchanger (SJAE Aftercondenser
-Head)(Int)(B2.1.2) and One-Time Inspection (B2.1.16)LBS LBS Carbon Steel Dry Gas (Int)Carbon Steel Plant Indoor Air (Ext)Secondary Water (Int)None Loss of material Loss of material Loss of material None VIII.1-15 3.4.1.44 A PB, SIA Carbon Steel External Surfaces Monitoring Program (B2.1.20)Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)External Surfaces Monitoring Program (B2.11.20)
VIII.H-7 3.4.1.28 B VIII.E-37 3.4.1.03 E, 24 VIII.A-16 3.4.1.02 E, 24-VIII.H-7 3.4.1.28 B PB, SIA Carbon Steel Steam (Int)LBS Carbon Steel Plant Indoor Air Loss of material (Ext)
Enclosure 1 PG&E Letter DCL-10-091 Page 71 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate System (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Heat LBS Carbon Steel Secondary Water Loss of material Exchanger (SJAE Aftercondenser
-Head)Heat Exchanger (SJAE Aftercondenser
-Shell)Heat Exchanger (SJAE Aftercondenser
-Shell)Heat Exchanger (SJAE Intercondenser
-Head)Heat Exchanger (SJAE Intercondenser
-Head)Heat Exchanger (SJAE Intercondenser
-Shell)(Int)Plant Indoor Air (Ext)LBS LBS LBS Carbon Steel Carbon Steel Steam (Int)Carbon Steel LBS LBS Carbon Steel Carbon Steel Plant Indoor Air (Ext)Secondary Water (Int)Plant Indoor Air (Ext)Loss of material Loss of material Loss of material Loss of material Loss of material Water Chemistry (B2.1.2) and One-Time Inspection (82.1.16)External Surfaces Monitoring Program (82.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (82.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (82.1.2) and One-Time Inspection (82.1.16)External Surfaces Monitoring Program (82.1.20)VIII.H-7 3.4.1.28 B VIII.A-16 3.4.1.02 A VIII.H-7 3.4.1.28 B VIII.E-37 3.4.1.03 A VIII.E-37 3.4.1.03 A VIII.H-7 3.4.1.28 B Enclosure 1 PG&E Letter DCL-10-091 Page 72 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate Environment Aging Etrect Requiring Management Heat LBS Carbon Steel Secondary Water Loss of material Water Chemistry Exchanger (I nt) (B2.1.2) and One-Time (SJAE Inspection (B2.1.16)Intercondenser
-Shell)Heat Exchanger (Stator Coil Cooler -Head)Heat Exchanger (Stator Coil Cooler -Head)Heat Exchanger (Stator Coil Cooler -Shell)Heat Exchanger (Stator Coil Cooler -Shell)Orifice Orifice Orifice LBS LBS LBS LBS LBS LBS LBS Carbon Steel Carbon Steel Carbon Steel Carbon Steel Carbon Steel Carbon Steel Plant Indoor Air (Ext)Secondary Water (Int)Closed Cycle Cooling Water (Int)Plant Indoor Air (Ext)Plant Indoor Air (Ext)Secondary Water (Int)Loss of material Loss of material Loss of material Loss of material Loss of material Loss of material None External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.H-7 3.4.1.28 B VIII.E-37 3.4.1.03 A Closed-Cycle Cooling VIII.E-5 Water System (B2. 1.10)3.4.1.24 B External Surfaces Monitoring Program (B2.1.20)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None VIII.H-7 3.4.1.28 B VIII.H-7 3.4.1.28 B VIII.E-34 3.4.1.04 VIII.1-10 3.4.1.41 A A Stainless Plant Indoor Air Steel (Ext)
Enclosure 1 PG&E Letter DCL-10-091 Page 73 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate System (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table 1 Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Orifice LBS Stainless Secondary Water Loss of material Steel (Int)Orifice Piping Piping Piping Piping Piping Piping Piping Piping LBS LBS Stainless Secondary Water Steel (Int)Carbon Steel Raw Water (Int)LBS, PB Carbon Steel LBS Carbon Steel LBS Carbon Steel Secondary Water (Int)Secondary Water (Int)Steam (Int)Cracking Loss of material Loss of material Wall thinning Loss of material Wall thinning None Loss of material Cracking Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Flow-Accelerated Corrosion (B2.1.6)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Flow-Accelerated Corrosion (B2.1.6)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.E-30 VIII.E-29 3.4.1.16 A VIII.G-36 3.4.1.08 E, 32 3.4.1.14 A VIII.E-34 3.4.1.04 A LBS LBS LBS LBS VIII.E-35 3.4.1.29 B VIII.A-16 3.4.1.02 A VIII.A-17 3.4.1.29 B Carbon Steel Steam (Int)Stainless Plant Indoor Air Steel (Ext)Stainless Secondary Water Steel (Int)Stainless Secondary Water Steel (Int)VIII.I-10 3.4.1.41 A VIII.E-29 3.4.1.16 A VIII.E-30 3.4.1.14 A Enclosure 1 PG&E Letter DCL-10-091 Page 74 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate System (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table 1 Item Notes Type Function Reqnuiring Program 1801 Vol.Management 2 Item Piping LBS Stainless Steam (lnt) Cracking Water Chemistry VIII.A-10 3.4.1.39 E, 4 Piping Pulsation Dampener Pulsation Dampener Pulsation Dampener Pump Pump Pump Pump LBS LBS LBS LBS LBS LBS LBS LBS Steel Stainless Steel Stainless Steel Stainless Steel Steam (Int)Plant Indoor Air (Ext)Secondary Water (Int)Loss of material None Stainless Secondary Water Steel (Int)Carbon Steel Raw Water (Int)Stainless Plant Indoor Air Steel (Ext)Stainless Secondary Water Steel (Int)Stainless Secondary Water Steel (Int)Loss of material Cracking Loss of material None Loss of material Cracking (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.I-10 3.4.1.41 VIII.E-29 3.4.1.16 VIII.A-12 3.4.1.37 E, 4 A A A VIII.E-30 3.4.1.14 VIII.G-36 3.4.1.08 E, 32 VIII1.-10 3.4.1.41 VIII.E-29 3.4.1.16 A A A VIII. E-30 3.4.1.14 Enclosure 1 PG&E Letter DC Page 75 of 80 Table 3.4.2-4 Section 3.4 L-10-091 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate Svstem (Continued)
Strainer Strainer Tank Tank LBS LBS LBS LBS Carbon Steel Carbon Steel Carbon Steel Carbon Steel Carbon Steel Carbon Steel Carbon Steel Stainless Steel Plant Indoor Air (Ext)Steam (Int)Plant Indoor Air (Ext)Plant Indoor Air (Int)Secondary Water (Int)Plant Indoor Air (Ext)Steam (Int)Plant Indoor Air (Ext)Loss of material Loss of material Loss of material Loss of material Loss of material Loss of material Loss of material None Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None VIII.H-7 VIII.A-16 VIII.H-7 VIII.G-34 VIII. E-34 VIII.H-7 VIII.A-16 VIII.1-10 3.4.1.28 3.4.1.02 3.4.1.28 3.4.1.30 3.4.1.04 3.4.1.28 3.4.1.02 3.4.1.41 Tank Trap Trap Trap LBS LBS LBS LBS Enclosure 1 PG&E Letter DC Page 76 of 80 Table 3.4.2-4 Section 3.4 L-1 0-091 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate System (Continued)
Trap Trap Tubing Tubing Tubing Tubing Tubing Tubing Tubing LBS LBS LBS LBS LBS LBS LBS LBS LBS Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Steam (Int)Steam (Int)Plant Indoor Air (Ext)Secondary Water (Ext)Secondary Water (Ext)Secondary Water (Int)Secondary Water (Int)Steam (Int)Steam (Int)Cracking Loss of material None Loss of material Cracking Loss of material Cracking Cracking Loss of material Loss of material Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program VIII.A-12 VIII.1-10 VIII. E-29 VIII.E-30 VIII.E-29 VIII.E-30 VIII.A-10 VIII.A-12 3.4.1.37 3.4.1.41 3.4.1.16 3.4.1.14 3.4.1.16 3.4.1.14 3.4.1.39 3.4.1.37 E, 4 A A A A A E, 4 E, 4 Valve LBS, PB Carbon Steel Plant Indoor Air (Ext)VIII.H-7 3.4.1.28 B (B2.1.20)
Enclosure 1 Section 3.4 PG&E Letter DCL-10-091 AGING MANAGEMENT OF STEAM AND Page 77 of 80 POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate Valve LBS Carbon Steel Raw Water (Int) Loss of material Valve Valve Valve Valve Valve Valve Valve LBS LBS, PB LBS, PB LBS LBS, PB LBS, PB LBS Carbon Steel Cast Iron Cast Iron Cast Iron Stainless Steel Stainless Steel Stainless Steel Steam (Int)Plant Indoor Air (Ext)Secondary Water (Int)Steam (Int)Plant Indoor Air (Ext)Secondary Water (Int)Secondary Water (Int)Loss of material Loss of material Loss of material Loss of material None Loss of material Cracking Monitoring Program Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B2.1.22)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)External Surfaces Monitoring Program (B2.1.20)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)None Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.G-36 3.4.1.08 E, 32-VIII.A-16 VIII.H-7 VIII. E-34 VIII.A-16 VIII.1-10 VIII.E-29 VIII.E-30 3.4.1.02 3.4.1.28 3.4.1.04 3.4.1.02 3.4.1.41 3.4.1.16 3.4.1.14 A B A A A A A Enclosure 1 PG&E Letter DCL-10-091 Page 78 of 80 Section 3.4 AGING MANAGEMENT OF STEAM AND POWER CONVERSION SYSTEM Table 3.4.2-4 Steam and Power Conversion System -Summary of Aging Management Evaluation 
-Condensate System (Continued)
Component Intended Material Environment Aging Effect Aging Management NUREG- Table I Item Notes Type Function Requiring Program 1801 Vol.Management 2 Item Valve LBS Stainless Steam (Int) Cracking Water Chemistry VIII.A-1Q 3.4.1.39 E, 4 Steel Valve LBS Stainless Steel Steam (Int)(B2.1.2) and One-Time Inspection (B2.1.16)Loss of material Water Chemistry (B2.1.2) and One-Time Inspection (B2.1.16)VIII.A-12 3.4.1.37 E, 4 Notes for Table 3.4.2-4: Standard Notes: H Aging effect not in NUREG-1 801 for this component, material and environment combination.
Plant Specific Notes: 1 3 4 The Loss of Preload aging effect is not identified in NUREG-1801 for this component, material, and environment combination.
Loss of preload is managed by the Bolting Integrity (B2.1.7) AMP.The in-scope condensate system components which may have a raw water environment are abandoned-in-place.
Thus, the Open-Cycle Cooling Water System aging management program does not apply.The Water Chemistry Program (B2.1.2) and the One-Time Inspection Program (B2.1.16) manages loss of material due to pitting and crevice corrosion and cracking due to stress corrosion cracking.
The One-Time Inspection Program (82.1.16) includes selected components at susceptible locations.
Enclosure 1 Appendix B.PG&E Letter DCL-10-091 AGING MANAGEMENT PROGRAMS.Page 79 of 80 B2.1.10 Closed-Cycle Cooling Water System Program Description The closed-cycle cooling water (CCCW) system program manages loss of material, cracking and reduction of heat transfer for components in the closed-cycle cooling wvater systems. The program provides for: (1) preventive measures to minimize corrosion including maintenance of corrosion inhibitor, pH buffering agent, and biocide concentrations, and (2) periodic system and component performance testing and inspection.
Preventive measures include the monitoring and control of corrosion inhibitors and other chemical parameters, such as pH, in accordance with the guidelines of EPRI TR-107396, Revision 1 (EPRI 1007820).
Periodic inspection and testing to confirm function and monitor corrosion is performed in accordance with EPRI TR-1 07396, Revision 1 (EPRI 1007820), and industry and plant operating experience.
DCPP has four systems within the scope of license renewal that meet the definition for CCCW systems in Generic Letter 89-13 and portions of additional systems (heat exchangers or coolers) that are serviced directly by these systems. These CCCW systems are not subject to significant sources of contamination.
The water chemistry is controlled in these systems and heat is not directly rejected to a heat sink.The CCCW systems in License Renewal scope are:* component cooling water (CCW) system* service cooling water (SCW) system* diesel engine jacket cooling water (DECW) system, a subsystem of the diesel generator system* auxiliary building HVAC system The program maintains water chemistry within the parameter limits specified in plant procedures and consistent with those in EPRI TR-1 07396, Revision 1 (EPRI 1007820), in order to minimize corrosion and microbiological growth. The chemicals added to the CCW and SCW systems are potassium molybdate (iron and aluminum corrosion inhibitor), potassium nitrite (iron corrosion inhibitor), tolyltriazole (TTA -a copper corrosion inhibitor), potassium tetra borate (buffering), potassium hydroxide (pH control), glutaraldehyde (biocide) and isothiazoline (biocide).
The chemicals added to the DECW system are potassium dichromate and potassium hydroxide (corrosion inhibitors).
The cooling water system associated with the auxiliary building HVAC system is maintained as a sealed pure water system based on potable water, without additives.
Enclosure 1 Appendix B PG&E Letter DCL-10-091 AGING MANAGEMENT PROGRAMS Page 80 of 80 The CCCW system program periodically monitors system chemistry to verify it is being maintained in accordance with the guidelines of EPRI TR-1 07396, Revision 1 (EPRI 1007820), with stated exceptions, to minimize corrosion and SCC. In addition, nonchemistry testing and inspection techniques consistent with EPRI TR-1 07396, Revision 1 (EPRI 1007820), are used to confirm the effectiveness of the program.The CCW pumps are periodically tested to verify pump performance.
Nondestructive examinations are used to verify that the pressure boundary intended function of the CCW heat exchangers is maintained.
Periodic performance testing of the CCW heat exchangers is part of the open-cycle cooling water system program (B2.1.9).
Diesel engine performance parameters are monitored through periodic surveillance tests. These tests are used to monitor the performance of the DECW system components.
Inspections are performed periodically on the in-scope DECW components.
The SCW system, stator cooling water system, and the auxiliary building HVAC system chilled water systems are within the scope of license renewal per 10 CFR 54.4(a)(2) for spatial interaction concerns only. Therefore, the only component intended function applicable to these systems is (a)(2) leakage boundary (spatial).
The periodic sampling and maintenance of system chemistry within specified limits are adequate to manage aging before the loss of this intended function.}}