ML13137A473

State of New York (NYS) Pre-Filed Evidentiary Hearing Exhibit NYS000476, License Renewal Application-Completed Engineering Project Cost Estimates for SAMAs Previously Identified as Potentially Cost Beneficial

ML13137A473
Person / Time
Site:	Indian Point
Issue date:	05/17/2013
From:	Entergy Nuclear Operations
To:	Atomic Safety and Licensing Board Panel
SECY RAS
References
RAS 24547, 50-247-LR, 50-286-LR, ASLBP 07-858-03-LR-BD01
Download: ML13137A473 (3)

Text

NYS000476 Submitted: May 17, 2013 EXCERPT ATTACHMENT 1 TO NL-13-075 License Renewal Application-Completed Engineering Project Cost Estimates for SAMAs Previously Identified as Potentially Cost Beneficial ENTERGY NUCLEAR OPERATIONS, INC.

INDIAN POINT NUCLEAR GENERATING UNIT NOS. 2 & 3 NOS. 50-286

NL-13-075 Attachment 1 Page 4 of 13 contingencies reflecting the location and complexity of the work and consistency with Association for Advancement for Cost (AACE) guidance (Reference 14).

TABLE 1 Results of Cost Benefit Analysis of IP2 SAMA Candidates Benefit Estimated IP2 Phase II SAMA Benefit with Conclusion 1 Cost Uncertainty 009 - Create a reactor cavity flooding $6,347,528 $13,363,217 $1,738,982 Cost Beneficial system. (Deferred) 021 - Install additional pressure or leak $2,093,852 $4,408,109 $4,607,051 Not Cost Beneficial monitoring instrumentation for inter-system loss of coolant accident (ISLOCAs).

022 - Add redundant and diverse limit $1,071,465 $2,255,716 $7,685,460 Not Cost Beneficial switches to each containment isolation valve.

028 - Provide a portable diesel-driven $1,357,046 $2,856,939 $2,137,804 Cost Benefic ial battery charger. (Deferred) 044 - Use fire water system as backup $2,350,530 $4,948,485 $3,046,418 Cost Beneficial for steam generator inventory. (Deferred) 053 - Keep both pressurizer power- $659,715 $1,388,873 $1,467,848 Not Cost Beneficial operated relief valves (PORV) block valves open.

054 - Install flood alarm in the 480V $5,591,781 $11 ,772,170 $456,985 Cost Beneficial switchgear room. (Deferred) 056 - Keep residual heat removal (RHR) $48,723 $102,574 $1,705,367 Not Cost Beneficial heat exchanger discharge motor operated valves (MOVs) normally open.

060 - Provide added protection against $1,275,337 $2,684,920 $715,145 Cost Beneficial flood propagation from stairwell 4 into the 480V switchgear room. (Deferred) 061 - Provide added protection against $2,754,991 $5,799,982 $933,981 Cost Beneficial flood propagation from the deluge room into the 480V switchgear room. (Deferred) 062 Provide a hard-wired connection to $850,165 $1,789,822 $1,624,840 Cost Beneficial an SI pump alternate shutdown system (ASSS) power supply. (Deferred) 065 - Upgrade the ASSS to allow timel' $5,591,781 $11,772,170 $1,789,771 Cost Beneficial restoration of seal injection and cooling.

(Deferred)

IP2-GAG N/A $13,000,000 $458,617 Cost Beneficial (To Be Implemented)

Bases for conclusions are discussed further below.

NL-l Attachment 1 Page 5 13 Results of Cost Benefit Analysis of IP3 SAMA Candidates Benefit Estimated IP3 Phase II SA1"IA Benefit with Conclusion 2 Cost Uncertainty 007 - Create a reactor flooding $5,038,071 $7,301,552 $1,869,811 Cost Beneficial svstem. (Deferred) 018 Route the discharge from the main $4,821,779 $14,637,545 $35,676,701 Not Cost Beneficial steam safety valves through a structure where a water spray would condense the steam and remove most of the fission products.

019 - Install additional pressure or leak $2,126,663 $3,082,120 $6,462,470 Not Cost Beneficial monitoring instrumentation for ISLOCAs.

052 Open city water supply valve for $249,398 $361,446 $138,378 Cost Beneficial alternative AFW pump suction. (Implemented) 053 Install an excess flow valve to $498,795 $722,892 $340,790 Cost Beneficial reduce the risk associated with hydrogen explosions. (To Be Implemented) 055 - Provide hard-wired connection to a $4,073,152 $5,903,118 $1,589,189 Cost Beneficial safety injection (SI) or RHR pump from the Appendix R bus (MCC 312A).

(Deferred) 061 - Upgrade the ASSS to allow timely $4,359,371 $6,317,929 $2,258,137 Cost Beneficial restoration of seal injection and cooling.

(Deferred) 062 - Install flood alarm in the 480 VAC $4,359,371 $6,317,929 $494,175 Cost Beneficial switchgear room. (Deferred)

IP3-GAG N/A $19,000,000 $458,617 Cost Beneficial (To Be Implemented)

As noted in Table 1 above, six SAMAs previously identified as potentially cost-beneficial (IP2-021, IP2-022, IP2-053, IP2-056, IP3-018, IP3-019) are not cost-beneficial based on the now-completed, more comprehensive engineering project cost estimates. Further information regarding the cost estimates for the six no-Ionger-cost-beneficial SAMAs is provided below.

1. IP2-021: Install Additional Pressure and Leak Monitoring Instrumentation for ISLOCAs IP2-021 the installation pressure at nine separate inter-system loss of coolant accident (ISLOCA) paths (inside containment) in order to measure pressure changes within an isolation boundary. The installed pressure transmitters would transmit information to a location outside containment for remote display and monitoring. The previous cost estimate for IP2-021 was $3.2 million. That estimate was updated accordance with the methodology described above, including use of more detailed plant-specific design information, current labor blllmg rates, updated contingency factors, and accounting site access The Bases for conclusions are discussed further below.