Text

Expedited Seismic Evaluation Process Report (CEUS Sites) Related to the Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from The...
	ML14360A016
Person / Time
Site:	Seabrook
Issue date:	12/19/2014
From:	Dean Curtland; NextEra Energy Seabrook
To:	; Document Control Desk, Division of Operating Reactor Licensing
References
	SBK-L-14229
	Download: ML14360A016 (105)
	v • d • e

NExTera EN ERGY ndl,-

December 19, 2014 10 CFR 50.54(f)

Docket No. 50-443 SBK-L-14229 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Seabrook Station NextEra Energy Seabrook, LLC Expedited Seismic Evaluation Process Report (CEUS Sites)

Related to the Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights From the Fukushima Dai-ichi Accident

References:

1. NRC Letter, Requestfor Information Pursuantto Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insightsfrom the Fukushima Dai-ichiAccident, dated March 12, 2012 (Accession No. ML I2073A348)

2. NEI Letter, ProposedPath Forwardfor NTTF Recommendation 2.1: Seismic Reevaluations, dated April 9, 2013, (Accession No. ML13101A379)

3. NRC Letter, Electric Power Research Institute FinalDraft Report XXAXXX, "Seismic Evaluation Guidance:A ugmented Approachfor the Resolution of Fukushima Near-Term Task Force Recommendation 2.1: Seismic," as an Acceptable Alternative to the March 12, 2012, Information Requestfor Seismic Reevaluations, dated May 7, 2013, (Accession No. ML13106A331)

4. EPRI Report 1025287, Seismic Evaluation Guidance, Screening, Prioritizationand Implementation Details (SPID)for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1: Seismic, dated November 2012. (Accession No. ML12333A170)

5. NRC Letter, Endorsement of EPRI Final Draft Report 1025287, "Seismic Evaluation Guidance,"dated February 15, 2013, (Accession No. ML12319A074)

6. NRC Letter, Supplemental Information Related to Request for Information Pursuantto Title 10 of the Code of FederalRegulations 50.54(9 RegardingSeismic Hazard Reevaluationsfor Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-IchiAccident, dated February 20, 2014. (Accession No. ML14030A046) 1 *&oI NextEra Energy Seabrook, LLC, P.O. Box 300, Lafayette Road, Seabrook, NH 03874

U.S. Nuclear Regulatory Commission SBK-L-14229/ Page 2 of 3

7. NextEra Energy Seabrook letter SBK-L-14052, NextEra Energy Seabrook LLC Seismic Hazardand Screening Report (CEUS Sites) Response to NRC Request for Information Pursuantto 10 CFR 50.54(l) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights From the Fukushima Dai-IchiAccident, dated March 27, 2014.

(Accession No. ML14092A413)

On March 12, 2012, the Nuclear Regulatory Commission (NRC) issued Reference I to all power reactor licensees and holders of construction permits in active or deferred status. Enclosure 1 of Reference 1 requested each addressee located in the Central and Eastern United States (CEUS) to submit a Seismic Hazard Evaluation and Screening Report within 1.5 years from the date of Reference 1.

In Reference 2, the Nuclear Energy Institute (NEI) requested NRC agreement to delay submittal of the final CEUS Seismic Hazard Evaluation and Screening Reports so that an update to the Electric Power Research Institute (EPRI) ground motion attenuation model could be completed and used to develop that information. NEI proposed that descriptions of subsurface materials and properties and base case velocity profiles be submitted to the NRC by September 12, 2013, with the remaining seismic hazard and screening information submitted by March 31, 2014.

NRC agreed with that proposed path forward in Reference 3.

Reference 4 contains industry guidance and detailed information to be included in the Seismic Hazard Evaluation and Screening Report submittals. NRC endorsed this industry guidance in Reference 5.

In Reference 7, NextEra Energy Seabrook submitted its Seismic Hazard Evaluation and Screening Report for Seabrook Station providing the information described in Section 4 of Reference 4 in accordance with the schedule identified in Reference 2.

The enclosure to this letter provides the NextEra Energy Seabrook Expedited Seismic Evaluation Process Report for Seabrook Station as directed by Reference 6.

This letter contains no new regulatory commitments.

If you have any questions regarding this report, please contact Mr. Michael Ossing, Licensing Manager, at (603) 773-7512.

U.S. Nuclear Regulatory Commission SBK-L-14229/ Page 3 of 3 I declare under penalty of perjury that the foregoing is true and correct.

Executed on December /q ,2014 Sincerely, NextEra Energy Seabrook, LLC 9-a.- 4z2 Dean Curtland Site Vice President Enclosure cc: D. Dorman, NRC Region I Administrator J. G. Lamb, NRC Project Manager P. Cataldo, NRC Senior Resident Inspector

Enclosure to SBK-L-14229 Seabrook Station NextEra Energy Seabrook, LLC Expedited Seismic Evaluation Process Report (CEUS Sites)

Related to the Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights From the Fukushima Dai-ichi Accident Page 1 of 25

Expedited Seismic Evaluation Process (ESEP) for Seabrook Station 1.0 Purpose and Objective Following the accident at the Fukushima Dai-ichi nuclear power plant resulting from the March 11, 2011, Great Tohoku Earthquake and subsequent tsunami, the Nuclear Regulatory Commission (NRC) established a Near Term Task Force (NTTF) to conduct a systematic review of NRC processes and regulations and to determine if the agency should make additional improvements to its regulatory system. The NTTF developed a set of recommendations intended to clarify and strengthen the regulatory framework for protection against natural phenomena.

Subsequently, the NRC issued a 50.54(f) letter on March 12, 2012 [1], requesting information to assure that these recommendations are addressed by all U.S. nuclear power plants. The 50.54(f) letter requests that licensees and holders of construction permits under 10 CFR Part 50 reevaluate the seismic hazards at their sites against present-day NRC requirements and guidance.

Depending on the comparison between the reevaluated seismic hazard and the current design basis, further risk assessment may be required. Assessment approaches acceptable to the staff include a seismic probabilistic risk assessment (SPRA), or a seismic margin assessment (SMA).

Based upon the assessment results, the NRC staff will determine whether additional regulatory actions are necessary.

This report describes the Expedited Seismic Evaluation Process (ESEP) undertaken for Seabrook Station. The intent of the ESEP is to perform an interim action in response to the NRC's 50.54(f) letter [1] to demonstrate seismic margin through a review of a subset of the plant equipment that can be relied upon to protect the reactor core following beyond design basis seismic events.

The ESEP is implemented using the methodologies in the NRC endorsed guidance in EPRI 3002000704, Seismic Evaluation Guidance: Augmented Approach for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1: Seismic [2].

The objective of this report is to provide summary information describing the ESEP evaluations and results. The level of detail provided in the report is intended to enable the NRC to understand the inputs used, the evaluations performed, and the decisions made as a result of the interim evaluations.

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2.0 Brief Summary of the FLEX Seismic Implementation Strategies The Seabrook Station FLEX strategies for Reactor Core Cooling and Heat Removal, Reactor Inventory Control/Long-term Sub-criticality, Spent Fuel Pool (SFP) cooling and Containment Function are sumunarized below. This summary is derived in part from the Seabrook Overall Integrated Plan (OIP) in Response to the March 12, 2012, Commission Order EA-12-049 [Ref.

3] and includes changes required to the strategy which will be included in the February 28, 2015 six month update to the NRC. Specifically, the Seabrook FLEX strategy will be modified to provide additional portable equipment stored within a Class I structure and protected from all external hazards and the strategies associated with that portable equipment. Supplemental Emergency Power System (SEPS) and the cooling tower will remain the optimum response for any event that does not result in a missile loss of the SEPS or cooling tower. Modifications to seismically harden SEPS are proceeding as originally planned. The original OIP included backup capability using existing diesel powered pumps. The revised strategy will continue to use the same connection points but will provide full coping capability. The additional protected portable equipment will consist of:

Low Pressure FLEX Pump (LPFP)

High Pressure FLEX Pump (HPFP)

The existing Cooling Tower (Brown's River) pump

Submersible pump and associated generator

250 KW generator

Tow vehicle

Debris removal equipment

Refueling cart Initially, (Phase 1) the plant is assumed to trip due to a loss of offsite power caused by the Beyond Design Basis External Event and be in an extended loss of AC power (ELAP) event.

For a BDBEE with significant warning such as a hurricane or severe winter storm it is also possible that the plant will already be shutdown in Mode 3 or Mode 4 at the time the loss of offsite power occurs. The plant response will be different in the three phases depending on whether the SEPS and cooling tower remain functional. The following provides a general description for each phase of coping, with and without SEPS available.

Phase 1 - Initial coping using installed plant equipment SEPS/Cooling Tower Available The SEPS generators are assumed to start automatically as designed and run in standby until manually connected to an Emergency Bus. If necessary, SEPS can also be started manually from the digital control panel in the 'B' Essential Switchgear Room or locally from the digital control Page 3 of 25

panels in each genset enclosure. The operating crew will manually close the SEPS breaker to 4.16 kV bus E6 ('B' Train vital power) from the Control Room, or locally in the 'B' Train Essential Switchgear Room. This action re-powers Bus E6 to supply 'B' Train ELAP loads. If Bus E6 is unavailable, SEPS can be manually aligned and connected to Bus E5 ('A' Train vital power). Once a 4.16 KV Emergency Bus is energized, operators verify that a centrifugal charging pump (CCP), a thermal barrier cooling water (TBCW) pump, a primary component cooling water (PCCW) pump, the motor-driven Emergency Feedwater (EFW) pump, and an ocean Service Water (SW) pump or a Cooling Tower (CT) pump are started by the Emergency Power Sequencer (EPS). Operation of a CCP and a TBCW pump ensures adequate RCP seal cooling throughout the event. This also marks the transition point from Phase 1 to Phase 2 event coping with SEPS and the cooling tower available.

SEPS /Cooling Tower Assumed to be Lost as a Result of Wind Driven Missiles In the event that the SEPS and/or cooling tower are lost as a result of wind driven missiles, the Phase 1 coping will rely on the turbine-driven EFW (TDEFW) pump manually operated to provide EFW flow to all four SGs with water from the Condensate Storage Tank (CST). The Atmospheric Steam Dump Valves (ASDVs) will be used for heat removal. The protected CST volume is adequate for 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months of heat removal. Station batteries are adequate for coping of at least 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months with load reduction after 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months . No RCS makeup is required for Phase 1 after installation of the Shield low leakage Reactor Coolant Pump (RCP) seals scheduled for October 2015.

Phase 2 - Transition from installed plant equipment to on-site FLEX equipment SEPS/Cooling Tower Available Seabrook's Phase 2 response with SEPS and tower available begins when an Emergency 4.16 KV Bus is re-powered from SEPS (Bus E6 preferred).,Reactor Coolant System (RCS) heat sink will be maintained by feeding the Steam Generators (SGs) using the turbine-driven EFW pump while steaming to the atmosphere via the ASDVs on each main steam line. The TDEFW pump is assumed to provide EFW flow to all four SGs with water from the CST. Prior to commencing a RCS cool down, a rapid boration is required to achieve Cold Shutdown boron concentration.

This requires opening the rapid boration valve (CS-V426) which provides 7000 ppm boric acid to the charging pump suction. CS-V426 is powered from a "B" Train motor control center (MCC); therefore it can be operated from the control room with SEPS powering Bus E6. If necessary, this valve can also be opened locally by a field operator in the Boric Acid Tank (BAT) room. An alternate available borated water source is the Refueling Water Storage Tank (RWST) which can be aligned to the charging pump suction. A cool down to Cold Shutdown ensures that the 'B' Train Residual Heat Removal (RHR) system can be placed in operation prior Page 4 of 25

to expending available water volume in the CST. The Primary Component Cooling Water (PCCW) system provides cooling water to safety related equipment, including the RHR pump and RHR heat exchanger. The PCCW system also provides cooling water flow to the spent fuel pool heat exchanger in the Fuel Storage Building and the RCP Thermal Barrier cooling loop located inside the Containment Building. The PCCW heat exchanger is provided with cooling water flow from the Service Water System via the 'B' Train Cooling Tower pump. PCCW system temperature is controlled by air-operated temperature control and bypass valves which are provided with a nitrogen backup supply in the event that control air pressure is lost. The safety-related nitrogen backup supply is sized to provide 10 full cycles of the temperature control and bypass valves over a 6 hour6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months period. If necessary, these valves can also be operated locally in the Primary Auxiliary Building by a field operator. The RCS will be cooled down and de-pressurized to a point where the RHR system can be placed in service (RCS temperature less than 350'F and RCS pressure less than 360 psig). The NEI 12-06 (Diverse and Flexible Coping Strategies (FLEX) Implementation Guide) assumption of the loss of normal access to the Ultimate Heat Sink (UHS) means that the ocean Service Water pumps are assumed to be unavailable for the duration of the event. Consequently, Seabrook will rely on the Service Water Cooling Tower as a backup ultimate heat sink. Heat sink will be restored by starting the 'B' Cooling Tower pump to restore flow in the 'B' Train Service Water System. This action can also be accomplished by manual actuation of a Tower Actuation Signal from the control room. Once RCS temperature and pressure have been reduced to RHR system operating conditions, the RHR system will be placed in service to continue the RCS cooldown to Mode 5. The RHR system will be used to maintain the RCS in Mode 5 for long-term coping. It is anticipated that the operating crew will evaluate refueling strategies for the SEPS gensets relatively early in the event. This action should not be delayed past 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to allow adequate time for strategy implementation.

NEI 12-06 Section 3.2.2.(13) requires that "Regardless of installed coping capability, all plants will include the ability to use portable pumps to provide Reactor Pressure Vessel (RPV)/RCS/SG makeup as a means to provide a diverse capability beyond installed equipment." At Seabrook Station this will be accomplished by the FLEX portable low pressure (LP) and portable high pressure (HP) pumps stored in a class 1 structure.

SEPS/Cooling Tower Assumed to be Lost as a Result of Wind Driven Missiles In the event that the SEPS and/or cooling tower are lost as a result of wind driven missiles, the Phase 2 strategy will utilize the portable FLEX equipment and proceed to depressurize the SGs to 250 psi. The portable low pressure FLEX pumps will be able to pump from the CST or alternate water source to all four SG's via the EFW header, or via the alternate discharge path to the main feed water lines. The alternate water source will be from protected sources with water quality and quantity sufficient for steaming the generators without loss of heat transfer from fouling until the 72-hour mark. Load shedding of the DC busses will be followed by connecting a 250 KW generator to Train A or Train B DC bus portable battery charger for battery charging, Page 5 of 25

DC control power and one train of instrumentation. Backup instrumentation readings can be accessed locally. RCS makeup should not be required for the Phase 2 duration; however, the FLEX high pressure pumps are available to provide injection from the Boric Acid Tanks (BAT).

RCS Inventory is adequate for a minimum of 7 days with the low leakage RCP seals. RCS boration will be required within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months and is accomplished with Safety Injection Tank (SIT) and High Pressure FLEX Pump (HPFP) pumping from BAT to one of two discharge connection points to the RCS. SFP makeup will be provided by gravity drain from the RWST or from the alternate water source if required.

Phase 3 - Obtain additional capability/redundancy from off-site equipment SEPS/Cooling Tower Available In this scenario the Regional Response Center (RRC) equipment delivered for Phase 3 becomes a backup to the SEPS with the plant already on shutdown cooling.

SEPS/Cooling Tower Assumed to be Lost as a Result of Wind Driven Missiles The RRC supplies 4160V and 480V generators, additional pumps, and hose connections. The RRC 4160V generator is connected to bus 5 or bus 6 through the SEPS feeder breaker to the bus.

The RCC low pressure, high flow pump with submersible suction booster pumps is connected to the SW system to pump water from the SW intake bay into the SW supply header. The Primary Component Cooling (PCCW), Spent Fuel Pool cooling, and RHR systems are placed in service for long term cooling.

3.0 Equipment Selection Process and Expedited Seismic Equipment List (ESEL)

The general process for developing the Expedited Seismic Equipment List (ESEL) follows Section 3, "Equipment Selection" of EPRI-3002000704 [2]. The selection of equipment for expedited seismic evaluation is based on the equipment identified in the Seabrook-specific FLEX implementation coping strategies. This includes the installed equipment and connection points associated with FLEX during the three phases of response. The scope of components included on the ESEL is based on a detailed review of the equipment required to perform the various functions and associated support system functions.

The ESEL component selection followed the EPRI guidance outlined in Section 3.2 of EPRI 3002000704. The Seabrook strategy involves the use of the installed SEPS generators to repower a safety bus which results in the identification of significantly more electrical distribution equipment than in strategies that employ portable pumps. The following considerations were used to develop the ESEP.

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1. The scope is limited to the primary means of accomplishing the implementation of the FLEX strategies as defined for the core cooling and containment functions for Phases 1, 2 and 3. Although the primary strategy utilizes the SEPS and cooling tower, the connections needed for the portable equipment were also bounded by this approach.

2. All installed equipment necessary for the successful implementation of the strategy (e.g.,

support system components such as power and control cabinets, component cooling, etc.)

3. Electrical breakers and relays whose failure could disable Phase 1 equipment. The scope of relays included on the ESEL is limited to lock-out and seal-in relays

4. Primary connection points for portable equipment.

5. Instrumentation needed to provide a key parameter, provided the required function can still be accomplished.

6. A minimum set of water sources needed to perform the required function is considered.

7. Structures, systems and components excluded per the EPRI 3002000704 guidance are:

" structures (e.g., containment, control building, auxiliary building, etc.).

" Piping, cabling, conduit, HVAC duct work and supports.

" Manual valves, check valves and rupture disks.

Power operated valves (MOV, AOV, SOV, etc.) not required to change state as part of the FLEX mitigation strategies

" Nuclear Steam Supply System components (e.g. RPV and internals, RCPs and seals, etc.).

8. SEPS is integral to Seabrook's primary FLEX strategy; however, the SEPS components are not included on the attached ESEL. Because the SEPS was known to be designed non-safety-related and non-seismic, an independent evaluation was completed earlier.

This evaluation [16] was performed consistent with criteria for the Augmented Approach using EPRI NP-6041-SL guidance but prior to the receipt of the EPRI GMRS. Seismic upgrades were identified to be required to the genset base mounting and auxiliaries.

These modifications will be completed prior to the fall 2015 refueling outage (ORI 7).

Additionally, any differences between the original evaluation and the new EPRI GMRS will be reconciled during the modification development.

The complete ESEL for Seabrook Station is presented in Attachment 1.

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4.0 Ground Motion Response Spectrum (GMRS) 4.1 Plot of GMRS Submitted by the Licensee The SSE Control Point elevation is defined at the top of hard rock at + 21'O" MSL, as discussed in Section 3.2 of the March submittal report [4].

The GMRS provided in the March submittal report [Ref. 4] is tabulated and graphed below:

Table 4-1 Seabrook GMRS Frequency (Hz) I GMRS (g) Frequency (Hz) GMRS (g) 100 0.499 5 0.469 90 0.540 4 0.384 80 0.611 3 0.291 70 0.719 2.5 0.240 60 0.853 2 0.198 50 0.976 1.5 0.147 45 1.02 1.25 0.118 40 1.05 1 0.0886 35 1.06 0.9 0.0807 31 1.06 0.8 0.0722 25 1.04 0.7 0.0633 20 1.00 0.6 0.0540 15 0.927 0.5 0.0443 12.5 0.866 0.4 0.0355 10 0.783 0.3 0.0266 9 0.730 0.2 0.0177 8 0.672 0.167 0.0148 7 0.609 0.125 0.0111 6 0.542 0.1 0.00887 Page 8 of 25

Figure 4-1 Seabrook GMRS Plot 1.2 1.0 0.8 _ _ N 2

0.6 U,

0.4 0.2 I I

~~

___________ ___________ I ______ __________ _ I 0.0 __________________

0 .1 1 10 100 Frequency (Hz)

-GMRS Page 9 of 25

4.2 Comparison to SSE As identified in the March submittal report [4], the GMRS for Seabrook exceeds the Seabrook SSE in the 1-10 Hz range as shown in the table and graph below. Values for GMRS and horizontal SSE in Table 4-2 are taken from the March submittal report [4].

Table 4-2 Seabrook GMRS vs. SSE Freq. (Hz) GMRS (unscaled, g) Horizontal SSE (g) GMRS/SSE 10 0.7830 0.6037 1.3 9 0.7300 0.6525 1.1 8 0.6720 0.6635 1.0 7 0.6090 0.6762 0.9 6 0.5420 0.6911 0.8 5 0.4690 0.7092 0.7 4 0.3840 0.7320 0.5 3 0.2910 0.7625 0.4 2.5 0.2400 0.7825 0.3 2 0.1980 0.6513 0.3 1.5 0.1470 0.5141 0.3 1.25 0.1180 0.4422 0.3 1 0.0886 0.3683 0.2 Page 10 of 25

Figure 4-2 Seabrook GMRS vs. SSE Plot 1.2 1.0 0.8 0-w Ol 0.6 Ul oU 0.4 0.2 0.0 I 10 Frequency (Hz)

GMRS - - - - SSE Page 11 of 25

5.0 Review Level Ground Motion (RLGM) 5.1 Description of RLGM Selected The RLGM for Seabrook was determined in accordance with Section 4 of EPRI 30020000704

[2] as being derived by linearly scaling the Seabrook SSE by the maximum ratio of the GMRS/SSE between the I and 10 hertz range. The maximum ratio between the 5% damping GMRS and horizontal SSE occurs at 10 Hz and equals 1.30, as determined in Table 4-2.

The RLGM is based on increasing the 5% damped horizontal and vertical SSE, per Figure 2.5-43 and 2.5-44 of the Seabrook UFSAR [13], by the maximum ratio of 1.30. The resulting RLGM is tabulated and plotted below.

Table 5-1 Seabrook RLGM Freq.RLGM Freq.RLGM Freq Horizontal Vertical Freq. Horizontal Vertical (Hz) (g) (g) (Hz) (g) (g) 50.00 0.3250 0.2167 3.70 0.9622 0.9610 45.00 0.3250 0.2401 3.50 0.9698 0.9685 41.00 0.3250 0.2630 3.10 0.9867 0.8734 37.00 0.3250 0.2907 2.80 1.0010 0.8009 33.00 0.3250 0.3250 2.50 1.0173 0.7272 31.00 0.3404 0.3404 2.40 0.9837 0.7023 28.00 0.3669 0.3669 2.20 0.9157 0.6522 25.00 0.3989 0.3989 2.00 0.8467 0.6013 22.00 0.4384 0.4384 1.80 0.7764 0.5497 20.00 0.4704 0.4704 1.60 0.7048 0.4972 18.00 0.5085 0.5085 1.50 0.6683 0.4706 16.00 0.5547 0.5547 1.40 0.6315 0.4438 15.00 0.5817 0.5817 1.30 0.5941 0.4166 14.00 0.6121 0.6121 1.20 0.5563 0.3892 13.00 0.6466 0.6466 1.10 0.5179 0.3614 12.00 0.6859 0.6859 1.00 0.4788 0.3332 11.00 0.7314 0.7314 0.90 0.4391 0.3046 10.00 0.7848 0.7848 0.80 0.3986 0.2755 9.00 0.8483 0.8483 0.70 0.3571 0.2459 8.50 0.8552 0.8551 0.60 0.3146 0.2157 8.00 0.8625 0.8624 0.50 0.2708 0.1846 7.50 0.8705 0.8702 0.40 0.2254 0.1527 7.00 0.8790 0.8787 0.30 0.1779 0.1195 6.50 0.8883 0.8879 0.25 0.1531 0.1023 6.00 0.8985 0.8979 5.50 0.9096 0.9090 5.00 0.9220 0.9212 4.50 0.9359 0.9349 4.00 0.9516 0.9505 Page 12 of 25

Figure 5-1 Plot of RLGM 1.2 1.0 0.8 tlD 0.4 0.2 0.0 0.1 1 10 100 Frequency (Hz)

RLGM Horz 5% ----

-/ RLGM Vert 5%

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5.2 Method to Estimate In-Structure Response Spectra (ISRS)

The method used to derive the ESEP in-structure response spectra (ISRS) was to scale the existing N/S, E/W, and Vertical SSE-based ISRS [14] by the maximum ratio of 1.30. The scaled ISRS were determined, as needed, for buildings and elevations where ESEL items are located at Seabrook. Refer to Calculation 14Q425 1-CAL-001 [7] for these scaled ISRS. These scaled ISRS are sometimes referred to as the Review Level Ground Motion In-Structure Response Spectra (RLGM ISRS).

6.0 Seismic Margin Evaluation Approach It is necessary to demonstrate that ESEL items have sufficient seismic capacity to meet or exceed the demand characterized by the RLGM. The seismic capacity is characterized as the peak ground acceleration (PGA) for which there is a high confidence of a low probability of failure (HCLPF). The PGA is associated with a specific spectral shape, in this case the 5%-damped RLGM spectral shape. The HCLPF capacity must be equal to or greater than the RLGM PGA of 0.325g. The criteria for seismic capacity determination are given in Section 5 of EPRI 3002000704 [2].

There are two basic approaches for developing HCLPF capacities:

1. Deterministic approach using the conservative deterministic failure margin (CDFM) methodology of EPRI NP-6041, A Methodology for Assessment of Nuclear Power Plant Seismic Margin (Revision 1) [5].

2. Probabilistic approach using the fragility analysis methodology of EPRI TR-103959, Methodology for Developing Seismic Fragilities [6].

For Seabrook, the deterministic approach using the CDFM methodology of EPRI NP-6041 [5]

was used to determine HCLPFs.

6.1 Summary of Methodologies Used Seabrook conservatively applied the methodology of EPRI NP-6041 [5] to all items on the ESEL. The screening walkdowns used the screening tables from Chapter 2 of EPRI NP-6041

[5]. The walkdowns were conducted by engineers who as a minimum attended the SQUG Walkdown Screening and Seismic Evaluation Training Course. The walkdowns were documented on Screening Evaluation Work Sheets (SEWS) from EPRI NP-6041 [5]. Anchorage capacity calculations were determined using the CDFM criteria from EPRI NP-6041 [5] with Seabrook specific allowables and material strengths used as applicable. Seismic demand was the RLGM provided in Table 5-1 and Figure 5-1.

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6.2 HCLPF Screening Process The peak horizontal spectral acceleration of the RLGM for Seabrook equals 1.02g at 2.5Hz (Table 5-1). Table 2-4 of EPRI NP-6041 [5] is based on ground peak spectral accelerations of 0.8g and 1.2g. Based on a peak spectral acceleration of 1.02g, the Seabrook ESEL components were screened against the "0.8 - 1.2g" column of Table 2-4 of NP-6041 [5].

The Seabrook ESEL contains 852 items (see Attachment 1). Of these items, 656 are subcomponents of the remaining 196 components. Of the subcomponents, 8 were identified as seal-in type relays. The components in the ESEL were evaluated to the EPRI NP-6041 [5]

checklists and documented on equipment Screening & Evaluation Sheets (SEWS) for the 196 main components, including identification of hosted subcomponents.

6.3 Seismic Walkdown Approach 6.3.1 Walkdown Approach Walkdowns for Seabrook were performed in accordance with the criteria provided in Section 5 of EPRI 3002000704 [2], which refers to EPRI NP-6041 [5] for the Seismic Margin Assessment process. Pages 2-26 through 2-30 of EPRI NP-6041 [5] describe the seismic walkdown criteria, including the following key criteria.

"The SRT [Seismic Review Team] should "walk by" 100% of all components which are reasonablyaccessible and in non-radioactiveor low radioactiveenvironments. Seismic capabilityassessment of components which are inaccessible,in high-radioactive environments, or possibly within contaminated Containment,will have to rely more on alternate means such as photographicinspection, more reliance on seismic reanalysis, and possibly, smaller insp'ection teams and more hurried inspections. A 100% "walk by" does not mean complete inspection of each component, nor does it mean requiringan electrician or other technician to de-energize and open cabinets or panelsfor detailed inspection of all components. This walkdown is not intended to be a QA or QC review or a review of the adequacy of the component at the SSE level.

If the SRT has a reasonable basisfor assuming that the group of components are similar and are similarly anchored,then it is only necessary to inspect one component out of this group.

The "similarity-basis"should be developed before the walkdown during the seismic capabilitypreparatorywork (Step 3) by reference to drawings, calculations or specifications.

The one component of each type which is selected should be thoroughly inspected which probably does mean de-energizingand opening cabinets or panelsfor this very limited sample. Generally, a spare representative component can be found so as to enable the Page 15 of 25

inspection to be performed while the plant is in operation. At leastfor the one component of each type which is selected, anchorage should be thoroughly inspected The walkdown procedure should be performed in an ad hoc manner. For each class of components the SRT should look closely at the first items and compare the field configurations with the construction drawings and/or specifications. If a one-to-one correspondenceis found, then subsequent items do not have to be inspected in as great a detail. Ultimately the walkdown becomes a "walk by" of the component class as the SRT becomes confident that the constructionpattern is typical. This procedurefor inspection should be repeatedfor each component class; although, during the actual walkdown the SRT may be inspectingseveral classes of components in parallel. If serious exceptions to the drawings or questionable constructionpracticesarefound then the Seismic or component class must be inspected in closer detail until the Systematic deficiency is defined The 100% "walk by" is to lookfor outliers, lack of similarity,anchorage which is different from that shown on drawings or prescribedin criteriafor that component, potentialSI

[Seismic Interaction']problems, situations that are at odds with the team members 'past experience, and any other areas of serious seismic concern. If any such concerns surface, then the limited sample size of one component of each type for thorough inspection will have to be increased The increase in sample size which should be inspected will depend upon the number of outliers and different anchorages,etc., which are observed It is up to the SRT to ultimately select the sample size since they are the ones who are responsiblefor the seismic adequacy of all elements which they screenfrom the margin review. Appendix D gives guidancefor sampling selection."

The Seabrook walkdowns included, as a minimum, a 100% walk-by of all items on the ESEL except as noted in Section 7.0. Any previous walkdown information that was relied upon for SRT judgment is documented in Section 6.3.2.

6.3.2 Application of Previous Walkdown Information As applicable, walkdown results, photos, and anchorage verification from the NTTF 2.3 walkdowns for Seabrook [12] were used as an aid to the SRT to confirm walkdown observations and verify conformance with design drawings and documents.

' EPRI 3002000704 [2] page 5-4 limits the ESEP seismic interaction reviews to "nearby block walls" and "piping attached to tanks" which are reviewed "to address the possibility of failures due to differential displacements." Other potential seismic interaction evaluations are "deferred to the full seismic risk evaluations performed in accordance with EPRI 1025287 [11].

Page 16 of 25

6.3.3 Significant Walkdown Findings Consistent with the guidance from NP-6041 [5], no significant outliers or anchorage concerns were identified during the Seabrook seismic walkdowns.

6.4 HCLPF Calculation Process ESEL items were evaluated using the criteria in EPRI NP-6041 [5]. Those evaluations included the following steps:

" Performing seismic capability walkdowns for equipment to evaluate the equipment installed plant conditions

Performing screening evaluations using the screening tables in EPRI NP-6041 [5] as described in Section 6.2 and

" Performing HCLPF calculations considering various failure modes that include both structural failure modes (e.g. anchorage, load path etc.) and functional failure modes [Note:

functional failure modes are for relays only].

All HCLPF calculations were performed using the CDFM methodology. Simple HCLPF calculations were performed as part of the screening process and are documented in 14Q4251 -

CAL-002 [7]. Detailed HCLPF calculations were performed in calculations 14Q4251-CAL-003 through 14Q4251-CAL-006 [7].

Anchorage for components was evaluated either by SRT judgment, large margins in existing design basis calculations, or CDFM HCLPF calculations [7]. These evaluations are summarized in Attachment 2. For components located higher than -40 feet above grade, Table 2-4 of NP-6041 [5] is not directly applicable.

Page 5-4 of EPRI 3002000704 [2] references the EPRI document 1019200 [15] with respect to screening criteria beyond -40 feet above grade. Section 4-2 of 1019200 specifies 1.5 as an appropriate factor to evaluate the HCLPF capacity of in-structure mounted items. As such, the Table 2-4 spectral accelerations are multiplied by a factor of 1.5 in order to account for spectral acceleration at the base of the component. This screening level at the base of the components is compared to the RLGM ISRS.

ESEP equipment items which are beyond -40ft above grade are located in the Control Building (CB) at elevation 75' and the Cooling Tower at elevation 78'. The 5% damped horizontal response spectra at these locations are documented in 14Q4251 -CAL-00 1 [7]. The maximum horizontal spectral peak for is 4.2305g for CB 75' and 7.4273g for CT 78', falling well above the upper bound of the NP-6041 Table 2-4 [5] second column of 1.5

1.2g = 1.8g. Since the spectral peaks are greater than 1.8g, all components at these locations must be evaluated per the Page 17 of 25

>1.8g screening column of NP-6041 Table 2-4 [5], which requires a seismic margins evaluation of the component for the RLGM ISRS. All components at these locations were evaluated against the RLGM ISRS in 14Q4251-CAL-002 [7].

6.5 Functional Evaluation of Relays A HCLPF evaluation is performed for all relays and switches which may negatively "seal in" or "lock out" on the Seabrook ESEL.

For relay evaluations, NP-6041-SL Appendix Q describes the following steps:

" Calculate in-cabinet response spectra (ICRS)

Establish a clipping factor to be applied to the ICRS

" Determine a relay's Generic Equipment Ruggedness Spectrum (GERS) Capacity

" Establish adjustment factors to convert the relay's GERS capacity to a CDFM level

Compare clipped-peak and Zero Period Acceleration (ZPA) demands to the GERS capacity HCLPF capacities for the relays on the Seabrook ESEL are calculated in 14Q4251 -CAL-004 [71 and are presented in Attachment 2.

6.6 Tabulated ESEL HCLPF results Tabulated ESEL HCLPF resfilts including controlling failure modes, if applicable, are included in Attachment 2 for all items on the ESEL. For items where the HCLPF has been determined to exceed the RLGM, the HCLPF value will be given as "> RLGM." For all other cases, a controlling HCLPF value and controlling failure mode will be given. The nature of the HCLPF evaluation will be identified through the use of the following terms:

"Screened" for components which have met the screening criteria of the NP-6041 [5]

screening tables.

"Anchorage" for components where an anchorage evaluation has been performed.

" "Relay Function" for relays where an evaluation has been performed.

"Component Evaluation" for components where an evaluation has been performed on the component itself, including screening for elevation > -40' above grade.

Page 18 of 25

7.0 Inaccessible Items 7.1 Identification of ESEL items inaccessible for walkdowns The following table lists the ESEL items that were not walked down, a discussion on why these items were not walked down, and states whether further action (i.e. future walkdown) is required.

Details on the screening and evaluation of the inaccessible items are provided in 14Q4251 -CAL-002 [7].

Table 7-1 ESEL Items Not Walked Down EquimentFurther Equipment Description Building Discussion action req'd?

For ALARA purposes, this item was not walked COOLING TOWER down. The equipment is evaluated based on other

-SW-V-140 RETURN SPRAY Cooling Tower means, including photographs and existing design No MOV documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked down. The equipment is evaluated based on other 1-CC-E-153B3 LOOP B THERMAL Containment means, including photographs and existing design No BARRIER FX documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked down. The equipment is evaluated based on other I-CC-P-322B3 LOOP B THERMAL Containment means, including photographs and existing design No BARRIER PUMP documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked SEAL WATER down. The equipment is evaluated based on other 1-CS-V-168 RETURN LINE Containment means, including photographs and existing design No CON'T ISOLATION documentation, and is found to be seismically MOV adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked SG A WIDE RANGE down. The equipment is evaluated based on other I-FW-LT- LEVEL Containment means, including photographs and existing design No 501 TRANSMITTER documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked SG BWIDE RANGE down. The equipment is evaluated based on other I-FW-LT- LEVEL Containment means, including photographs and existing design No 502 TRANSMITTER documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

Page 19 of 25

Further Equipment Description Building Discussion action req'd?

For ALARA purposes, this item was not walked SG C WIDE RANGE down. The equipment is evaluated based on other I-FW-LT- LEVEL Containment means, including photographs and existing design No 503 TRANSMITTER documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked SG D WIDE RANGE down. The equipment is evaluated based on other I-FW-LT- LEVEL Containment means, including photographs and existing design No 504 TRANSMITTER documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked LOOP B PCCW TO down. The equipment is evaluated based on other I-CC-V-176 CON'T ISOLATION Containment means, including photographs and existing design No (IRC) AOV documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

This item was not visible during walkdowns. The SG A NARROW equipment is evaluated based on other means, I-FW-LT- RANGE LEVEL Containment including photographs and existing design No 519 TRANSMITTER documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked C NARROW L SG down. The equipment is evaluated based on other I-FW-LT- RANGE LEVEL Containment means, including photographs and existing design No 537 TRANSMITTER documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked CONTAINMENT down. The equipment is evaluated based on other I-MM-IR-6 INSTRUMENT RACK Containment means, including photographs and existing design No 6 documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked CONTAINM[ENT down. The equipment is evaluated based on other 1-MM-IR-8 INSTRUMENT RACK Containment means, including photographs and existing design No 6 documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked PZR LEVEL down. The equipment is evaluated based on other I-RC-LT-459 CHANNEL I Containment means, including photographs and existing design No TRANSMITTER documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked PZR LEVEL down. The equipment is evaluated based on other I-RC-LT-460 CHANNEL II Containment means, including photographs and existing design No TRANSMITTER documentation, and is found to be seismically adequate relative to the RLGM. No further action is required.

Page 20 of 25

Equipment Further ID Description Building Discussion action req'd?

For ALARA purposes, this item was not walked down. The equipment is evaluated based on other FAH-DP-13B FUEL I -FAH-FY- Containment means, including photographs and existing design HANDLING MODE No 5443-2 Enclosure documentation, and is found to be seismically SOLENOID POWER adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked down. The equipment is evaluated based on other Primary SEAL WATER HEAT means, including photographs and existing design I -CS-E-5B Auxiliary No EXCHANGER 5B documentation, and is found to be seismically Building adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked down. The equipment is evaluated based on other Primary SEAL WATER means, including photographs and existing design 1-CS-F-3 Auxiliary No RETURN FILTER documentation, and is found to be seismically Building adequate relative to the RLGM. No further action is required.

For ALARA purposes, this item was not walked down. The equipment is evaluated based on other Primary SEAL WATER means, including photographs and existing design 1-CS-F-4A Auxiliary No SUPPLY FILTER 4A documentation, and is found to be seismically Building adequate relative to the RLGM. No further action is required.

This item was not accessible during walkdowns. The equipment is evaluated based on existing design VITAL 125VDC Control documentation and walkdowns of similar equipment I-EDE-B-I-A No BATTERY A Building (I-EDE-B-I-C and 1-EDE-B-I-D) and is found to be seismically adequate relative to the RLGM. No further action is required.

This item was not accessible during walkdowns. The equipment is evaluated based on existing design VITAL 125VDC Control documentation and walkdowns of similar equipment I-EDE-B-1-B No BATTERY B Building (I-EDE-B-I-C and I-EDE-B-I-D) and is found to be seismically adequate relative to the RLGM. No further action is required.

Page 21 of 25

7.2 Planned Walkdown / Evaluation Schedule / Close Out There are no additional walkdowns required or planned.

8.0 ESEP Conclusions and Results 8.1 Supporting Information Seabrook has performed the ESEP as an interim action in response to the NRC's 50.54(f) letter

[1]. It was performed using the methodologies in the NRC endorsed guidance in EPRI 3002000704 [2]. The ESEP provides an important demonstration of seismic margin and expedites plant safety enhancements through evaluations and potential near-term modifications of plant equipment that can be relied upon to protect the reactor core following beyond design basis seismic events.

The ESEP is part of the overall Seabrook response to the NRC's 50.54(f) letter [1]. On March 12, 2014, NEI submitted to the NRC results of a study [8] of seismic core damage risk estimates based on updated seismic hazard information as it applies to operating nuclear reactors in the Central and Eastern United States (CEUS). The study concluded that "site-specific seismic hazards show that there has not been an overall increase in seismic risk for the fleet of U.S.

plants" based on the re-evaluated seismic hazards. As such, the "current seismic design of operating reactors continues to provide a safety margin to withstand potential earthquakes exceeding the seismic design basis."

The NRC's May 9, 2014 NTTF 2.1 Screening and Prioritization letter [10] concluded that the "fleet wide seismic risk estimates are consistent with the approach and results used in the Gl- 199 safety/risk assessment." The letter also stated that "As a result, the staff has confirmed that the conclusions reached in Gi- 199 safety/risk assessment remain valid and that the plants can continue to operate while additional evaluations are conducted."

An assessment of the change in seismic risk for Seabrook was included in the fleet risk evaluation submitted in the March 12, 2014 NEI letter [8] therefore, the conclusions in the NRC's May 9 letter [10] also apply to Seabrook.

In addition, the March 12, 2014 NEI letter [8] provided an attached "Perspectives on the Seismic Capacity of Operating Plants," which (1) assessed a number of qualitative reasons why the design of SSCs inherently contain margin beyond their design level, (2) discussed industrial seismic experience databases of performance of industry facility components similar to nuclear SSCs, and (3) discussed earthquake experience at operating plants.

Page 22 of 25

The fleet of currently operating nuclear power plants was designed using conservative practices, such that the plants have significant margin to withstand large ground motions safely. This has been borne out for those plants that have actually experienced significant earthquakes. The seismic design process has inherent (and intentional) conservatisms which result in significant seismic margins within structures, systems and components (SSCs). These conservatisms are reflected in several key aspects of the seismic design process, including:

0 Safety factors applied in design calculations

Damping values used in dynamic analysis of SSCs

Bounding synthetic time histories for in-structure response spectra calculations

Broadening criteria for in-structure response spectra

Response spectra enveloping criteria typically used in SSC analysis and testing applications

Response spectra based frequency domain analysis rather than explicit time history based time domain analysis

Bounding requirements in codes and standards 0 Use of minimum strength requirements of structural components (concrete and steel)

Bounding testing requirements, and

Ductile behavior of the primary materials (that is, not crediting the additional capacity of materials such as steel and reinforced concrete beyond the essentially elastic range, etc.).

These design practices combine to result in margins such that the SSCs will continue to fulfill their functions at ground motions well above the SSE.

8.2 Identification of Planned Modifications Insights from the ESEP identified a single item where the HCLPF is below the RLGM and a plant modification will be made in accordance with EPRI 3002000704 [2] to enhance the seismic capacity of the plant:

1. Valve 1-MS-FV-3001 has a HCLPF below the RLGM and requires modification. The valve has a tubing elbow that will contact the operator guide support which could damage the tubing under seismic loading. Once the tubing elbow is modified in such a way that it will not contact the support steel, the valve can be shown to have a HCLPF > RLGM.

2. As stated previously the SEPS gensets were not included in the ESEL for this effort.

Modification to SEPS to ensure it remains available subsequent to a seismic event will consist of installation of new anchors in the existing skid plates to resist uplift, support modifications to exhaust piping and modification of the existing battery racks.

8.3 Modification Implementation Schedule Modification to the Valve l-MS-FV-3001 tubing support, and SEPS seismic upgrades will be completed by the end of the Fall 2015 refueling outage (November 2015).

Page 23 of 25

9.0 References

[1] NRC (E Leeds and M Johnson) Letter to All Power Reactor Licensees et al., "Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3 and 9.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-Ichi Accident," March 12, 2012.

[2] Seismic Evaluation Guidance: Augmented Approach for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1 - Seismic. EPRI, Palo Alto, CA: May 2013.3002000704.

[3] Overall Integrated Plan (OIP) in Response to the March 12, 2012, Commission Order EA-12-049

[4] SBK-L-14052, "NextEra Energy Seabrook, LLC Seismic Hazard and Screening Report (CEUS Sites), Response NRC Request for Information Pursuant to 10 CFR 50.54(f)

Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident", March 27, 2014

[5] A Methodology for Assessment of Nuclear Power Plant Seismic Margin, Rev. 1, August 1991, Electric Power Research Institute, Palo Alto, CA. EPRI NP 6041

[6] Methodology for Developing Seismic Fragilities, August 1991, EPRI, Palo Alto, CA.

1994, TR-103959

[7] S&A Reports and Calculations

a. Calculation 14Q4251 -CAL-00 1, Rev. 0, ESEP In-Structure Response Spectra.

b. Calculation 14Q4251 -CAL-002, Rev. 0, ESEP Walkdown and Screening of Equipment.

c. Calculation 14Q4251 -CAL-003, Rev. 0, ESEP HCLPFs for Condensate Storage Tank and Refueling Water Storage Tank.

d. Calculation 14Q4251-CAL-004, Rev. 0, ESEP HCLPFs for Relays.

e. Calculation 14Q4251-CAL-005, Rev. 0, ESEP HCLPFs for Control Building Electrical Equipment.

f. Calculation 14Q4251-CAL-006, Rev. 0, ESEP HCLPFs for Mechanical Equipment.

Page 24 of 25

[8] Nuclear Energy Institute (NEI), A. Pietrangelo, Letter to D. Skeen of the USNRC, "Seismic Core Damage Risk Estimates Using the Updated Seismic Hazards for the Operating Nuclear Plants in the Central and Eastern United States", March 12, 2014

[9] Nuclear Energy Institute (NEI), A. Pietrangelo, Letter to D. Skeen of the USNRC, "Proposed Path Forward for NTTF Recommendation 2.1: Seismic Reevaluations", April 9, 2013

[10] NRC (E Leeds) Letter to All Power Reactor Licensees et al., "Screening and Prioritization Results Regarding Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(F) Regarding Seismic Hazard Re-Evaluations for Recommendation 2.1 of the Near-Term Task Force Review of Insights From the Fukushima Dai-Ichi Accident," May 9, 2014.

[11] Seismic Evaluation Guidance: Screening, Prioritization and Implementation Details (SPID) for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1:

Seismic. EPRI, Palo Alto, CA: February 2013. 1025287.

[12] Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the Seabrook Station Unit 1, November 2012.

[13] Seabrook Station Updated Final Safety Analysis Report (UFSAR), Revision 16.

[14] Seabrook Station - Units 1 & 2 Amplified Response Spectra for Seismic Category I Structures, Revision 11, 7/15/87.

[15] EPRI document 1019200, "Seismic Fragility Applications Guide Update"

[16] Stevenson and Associates Document No. 13Q4168-RPT-001, Revision 0, July 2013, Seismic Evaluation of Seabrook Station Supplemental Emergency Power System Equipment.

Page 25 of 25

Attachment 1 Seabrook FLEX Expedited Seismic Equipment List (ESEL)

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL E Equipment Equipment Nts Reference Plant Location Include on Item # E I Normal State Desired State I ESEL?

FLEX ESEL - Decay Heat Removal via SG - EFW Turbine Driven Pump (TDEFW), ASDVs, MSIVs - Mechanical 1 1-FW-P-37A- TDEFW PUMP AND TURBINE SKID Standby Operating PID-1-FW-D20688 EFW Pumphouse, 28' Yes SKD-15 elevation 2 TD-2 EMERGENCY FEED PUMP, Standby Operating Evaluated as part of 1-FW-P-37A- PID-1-FW-D20688 No TURBINE DRIVER SKD-15.

3 1-MS-V-129 TDEFW TURBINE GOVERNOR Open & Latched Open Manual valve, excluded PID-1-MS-D20582 No VALVE 4 1-MS-V-395 TDEFW PUMP STEAM SUPPLY Closed Open PID-1-MS-D20582 EFW Pumphouse, 28' Yes VALVE (common valve) elevation 5 1-MS-V-410 COMMON STEAM SUPPLY PIPING Locked Open Open Manual valve, excluded PID-1-MS-D20582 No VENT 6 1-MS-V-95 TDEFW PUMP STEAM SUPPLY Locked Open Open Manual valve, excluded PID-1-MS-D20582 No VALVE 7 1-MS-V-94 TDEFW PUMP STEAM SUPPLY Closed Open Check Valve, excluded PID-1-MS-D20582 No CHECK VALVE (from SG-A) 8 1-MS-V-96 TDEFW PUMP STEAM SUPPLY Closed Open Check Valve, excluded PID-1-MS-D20582 No CHECK VALVE (from SG-B) 9 1-MS-V-393 TDEFW PUMP STEAM SUPPLY Closed Open PID-1-MS-D20582 West Pipechase, 12' Yes VALVE (supply from SG-AI elev., South end 10 1-MS-V-127 TDEFW PUMP STEAM SUPPLY Locked Open Open Manual valve, excluded PID-1-MS-D20582 No VALVE (from SG A) 11 1-MS-V-171 MSD-V-127 BYPASS VALVE Closed Closed Manual valve, excluded PID-1-MS-D20582 No 12 1-MS-V-394 TDEFW PUMP STEAM SUPPLY Closed Open PID-1-MS-D20582 East Pipechase, 12' Yes VALVE (supply from SG-B) elev., South end 13 1-MS-V-128 TDEFW PUMP STEAM SUPPLY Locked Open Open Manual valve, excluded PID-1-MS-D20582 No VALVE (from SG B) 14 1-MS-V-172 MSD-V-128 BYPASS VALVE Closed Closed Manual valve, excluded PID-1-MS-D20582 No 15 1-CO-V-154 TDEFW PUMP SUCTION FROM Locked Open Open Manual valve, excluded PID-1-CO-D20426 No CST 16 1-CO-V-155 TDEFW PUMP SUCTION FROM Locked Open Open Manual valve, excluded PID-1-CO-D20426 No CST 17 1-CO-V-146 EMERG. MAKEUP TO CST Locked Closed Closed Manual valve, excluded PID-1-CO-D20426 No 18 1-FW-E-172 TDEFW TURBINE BEARING OIL Standby Operating Evaluated as part of 1-FW-P-37A-SKD- PID-1-FW-D20688 No COOLER 15 19 1-FW-F-194 TDEFW TURBINE BEARING OIL Standby Operating Evaluated as part of 1-FW-P-37A-SKD- PID-1-FW-D20688 No FILTER 15 20 1-FW-P-359 TDEFW TURBINE MAIN OIL PUMP Standby Operating Evaluated as part of 1-FW-P-37A-SKD- PID-1-FW-D20688 No 15 21 I.FW-V-149 TDEFW BEARING OIL COOLER Locked Open Open Manual valve, excluded PID-1-FW-D20688 No OUTLET VALVE 22 I.FW-V-351 TDEFW BEARING OIL COOLER Closed Open Check Valve, excluded PID-1-FW-D20688 No OUTLET CHECK VALVE 23 1.FW-V-354 EFW RECIRC TO CST VALVE Locked Open Open Manual valve, excluded PID-1-FW-D20688 No Revision 1 September 11, 2014 Page I of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item # Equp ID Descrption Normal State Desired State NotesReference PlantLocation_ ESEL?

24 1.FW-V-349 EFW RECIRC TO CST CHECK Closed Open Check Valve, excluded PID-1-FW-D20688 No VALVE 25 1-CO-V-435 SUFP RECIRC TO CST CHECK Closed Closed Check Valve, excluded PID-1-CO-D20426 No VALVE 26 1-FW-V-353 MDEFW PUMP RECIRC CHECK Closed Closed Functions to isolate backflow through PID-1-FW-D20688 No VALVE MDEFW pumo. Excluded 27 1-FW-V-70 MDEFW PUMP DISCHARGE Closed Closed Functions to isolate backflow through PID-1-FW-D20688 No CHECK VALVE MDEFW pump. Excluded 28 1-FW-V-346 TDEFW PUMP RECIRC MOV Closed Open/throttled MOV is NC and functions to PID-1-FW-D20688 EFW Pumphouse, 28' Yes open/throttle to support EFW flow elevation, at FW-P-37A

.__control lone term for oumo orot.

29 1-FW-V-64 TDEFW PUMP DISCHARGE CHECK Closed Open Check Valve, excluded PID-1-FW-D20688 No VALVE 30 1-FW-V-65 TDEFW PUMP DISCHARGE Locked Open Open Manual valve, excluded PID-1-FW-D20688 No VALVE 31 1-FW-V-460 FW-V-357 BYPASS VALVE Locked Closed Closed Manual valve, excluded PID-1-FW-D20688 No 32 1-FW-V-357 SUFP X-CONNECT TO EFW CHECK Closed Closed Check Valve, excluded PID-1-FW-D20688 No VALVE 33 1-FW-V-125 TDEFW PUMP DISCHARGE RING Locked Open Open Manual valve, excluded PID-1-FW-D20688 No HEADER VALVE 34 1-FW-V-126 TDEFW PUMP DISCHARGE RING Locked Open Open Manual valve, excluded PID-1-FW-D20688 No HEADER VALVE 35 1-FW-V-127 TDEFW PUMP DISCHARGE RING Locked Open Open Manual valve, excluded PID-1-FW-D20688 No HEADER VALVE 36 1-FW-V-75 EFW PUMP DISCHARGE TO SG A Locked Open Open Manual valve, excluded PID-1-FW-D20688 No 37 1-FW-V-406 SG A RECIRC & LAYUP VALVE Locked Closed Closed Manual valve, excluded PID-1-FW-D20688 No 38 1-FW-V-87 EFW PUMP DISCHARGE TO SG D Locked Open Open Manual valve, excluded PID-1-FW-D20688 No 39 1-FW-V-409 SG D RECIRC & LAYUP VALVE Locked Closed Closed Manual valve, excluded PID-1-FW-D20688 No 40 1-FW-V-93 EFW PUMP DISCHARGE TO SG C Locked Open Open Manual valve, excluded PID-1-FW-D20688 No 41 1-FW-V-408 SG C RECIRC & LAYUP VALVE Locked Closed Closed Manual valve, excluded PID-1-FW-D20688 No 42 1-FW-V-81 EFW PUMP DISCHARGE TO SG B Locked Open Open Manual valve, excluded PID-1-FW-D20688 No 43 1-MM-IR-49 EFW Bldg Train A Instrument Installed/ installed/ Location for vital EFW controls FP 71707 EFW Pumphouse, 28' Yes

__ Rack 49 Energized Energized elevation, West side 43 1-MM-IR-50 EFW Bldg Train B Instrument Installed/ installed/ Location for vital EFW controls FP 71708 EFW Pumphouse, 28' Yes

__ Rack 50 Energized Energized elevation, East side 43 1-FW-FT-4224-4 EFW FLOW TRANSMITTER Energized Energized Flow signal to MOV-4224A, SG-B. PID-1-FW-D20688 No SIGNAL TO MOV-4224A Located on MM-IR-49. Evaluated I I_ I _ I Iunder that comoonent.

Revision 1 September 11, 2014 Page 2 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATrACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State NoesReernc__anLcaio ESEL?

44 1-FW-FT-4224-2 EFW FLOW TRANSMITTER Energized Energized Flow signal to MOV-4224B, SG-B. PID-1-FW-D20688 No SIGNAL TO MOV-4224B & MCB Located on MM-IR-50. Evaluated INDICATION under that component.

45 1-FW-FV-4224A EFW FLOW DISCHARGE CONTROL Open Open MOV is NO. No credit taken for Train A PID-1-FW-D20688 No MOV TO SG-B MOVs, using Train B MOVs.

46 1-FW-FV-4224B EFW FLOW DISCHARGE CONTROL Open Open/throttled PID-1-FW-D20688 EFW Pumphouse, 28' Yes MOV TO SG-B elevation, East side 47 1-FW-FT-4234-4 EFW FLOW TRANSMITTER Energized Energized Flow signal to MOV-4234B, SG-C. PID-1-FW-D20688 No SIGNAL TO MOV-4234B Located on MM-IR-50. Evaluated Under that component.

48 1-FW-FT-4234-2 EFW FLOW TRANSMITTER Energized Energized Flow signal to MOV-4234A, SG-C. PID-1-FW-D20688 No SIGNAL TO MOV-4234A & MCB Located on MM-IR-49. Evaluated INDICATION under that component, 49 1-FW-FV-4234A EFW FLOW DISCHARGE CONTROL Open Open MOV is NO. No credit taken for Train A PID-1-FW-D20688 No MOV TO SG-C MOVs, using Train B MOVs.

50 1-FW-FV-4234B EFW FLOW DISCHARGE CONTROL Open Open/throttled MOV is NO and functions to PID-1-FW-D20688 EFW Pumphouse, 28' Yes MOV TO SG-C close/throttle to support EFW flow elevation, East side control to SG-C____

51 1-FW-FT-4244-4 EFW FLOW TRANSMITTER Energized Energized Flow signal to MOV-4244A, SG-D. PID-1-FW-D20688 No SIGNAL TO MOV-4244A Located on MM-IR-49. Evaluated under that comnonent.

52 1-FW-FT-4244-2 EFW FLOW TRANSMITTER Energized Energized Flow signal to MOV-4244B, SG-D. PID-1-FW-D20688 No SIGNAL TO MOV-4244B & MCB Located on MM-IR-5S. Evaluated INDICATION under that component.

53 1-FW-FV-4244A EFW FLOW DISCHARGE CONTROL Open Open MOV is NO. No credit taken for Train A PID-1-FW-D20688 No MOV TO SG-D MOVs, using Train B MOVs.

54 1-FW-FV-4244B EFW FLOW DISCHARGE CONTROL Open Open/throttled MOV is NO and functions to PID-1-FW-D20688 EFW Pumphouse, 28' Yes MOV TO SG-D close/throttle to support EFW flow elevation, West side

_ontrol to SG-D 55 1-FW-FT-4214-4 EFW FLOW TRANSMITTER Energized Energized Flow signal to MOV-4214B, SG-A. PID-1-FW-D20688 No SIGNAL TO MOV-4214B Located on MM-IR-50. Evaluated under that component.

56 1-FW-FT-4214-2 EFW FLOW TRANSMITTER Energized Energized Flow signal to MOV-4214A, SG-A. PID-1-FW-D20688 No SIGNAL TO MOV-4214A & MCB Located on MM-IR-49. Evaluated INDICATION under that comoonent.

57 1-FW-FV-4214A EFW FLOW DISCHARGE CONTROL Open Open MOV is NO. No credit taken for Train A PID-1-FW-D20688 No MOV TO SG-A MOVs. using Train B MOVs.

58 1-FW-FV-4214B EFW FLOW DISCHARGE CONTROL Open Open/throttled MOV is NO and functions to PID-1-FW-D20688 EFW Pumphouse, 28' Yes MOV TO SG-A close/throttle to support EFW flow elevation, West side

_control to SG-A 59 1-FW-V-76 EFW TO SG-A STOP CHECK Locked Open Open Manual valve, excluded PID-1-FW-D20686 No 60 1-FW-V-30 MAIN FEEDWATER ISOLATION Open Closed Isolation valve NO, valve functions to PID-1-FW-D20686 West Pipechase, 12' Yes VALVE, SG-A close and remain closed. Valve is AOV elev., South end

_iston operated. FAI I I_

Revision 1 September 11, 2014 Page 3 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic A'TnACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

61 1-FW-FY-V3-A1 FWIV A TRAIN A CLOSE SOV Deen./Open Energ./Closed Energizes to drain hydraulic oil/ close 1-NHY-310844 E87/61 No valve. Eval'd under FW-V-30.

62 1-FW-FY-V4-B1 FWIV A TRAIN B CLOSE SOV Deen./Open Energ./Closed Energizes to drain hydraulic oil/ close 1-NHY-310844 No I valve. Eval'd under FW-V-30. E88/6g 63 1-FW-V-82 EFW TO SG-B STOP CHECK Locked Open Open Manual valve, excluded PID-1-FW-D20686 No 64 1-FW-V-39 MAIN FEEDWATER ISOLATION Open Closed Isolation valve NO, valve functions to PID-1-FW-D20686 East Pipechase, 12' Yes VALVE, SG-B close and remain closed. Valve is AOV elev., South end piston operated, FAI 65 1-FW-FY-V3-A2 FWIV BTRAIN A CLOSE SOV Deen./Open Energ./Closed Energizes to drain hydraulic oil/ close 1-NHY-310844 No valve. Eval'd under FW-V-39. E87/6m 66 1-FW-FY-V4-B2 FWIV B TRAIN B CLOSE SOV Deen./Open Energ./Closed Energizes to drain hydraulic oil/ close 1-NHY-310844 No valve. Eval'd under FW-V-39. E88/6h 67 1-FW-V-88 EFW TO SG-C STOP CHECK Locked Open Open Manual valve, excluded PID-1-FW-D20686 No 68 1-FW-V-48 MAIN FEEDWATER ISOLATION Open Closed Isolation valve NO, valve functions to PID-1-FW-D20686 East Pipechase, 12' Yes VALVE, SG-C close and remain closed. Valve is AOV elev., South end piston operated. FAI 69 1-FW-FY-V3-A3 FWIV C TRAIN ACLOSE SOV Deen./Open Energ./Closed Energizes to drain hydraulic oil/ close 1-NHY-310844 No valve. Eval'd under FW-V-48. E87/6n 70 1-FW-FY-V4-B3 FWIV C TRAIN B CLOSE SOV Deen./Open Energ./Closed Energizes to drain hydraulic oil/ close 1-NHY-310844 E88/6j No valve. Eval'd under FW-V-48.

71 1-FW-V-94 EFW TO SG-D STOP CHECK Locked Open Open Manual valve, excluded PID-1-FW-D20686 No 72 1-FW-V-57 MAIN FEEDWATER ISOLATION Open Closed Isolation valve NO, valve functions to PID-1-FW-D20686 West Pipechase, 12' Yes VALVE, SG-D close and remain closed. Valve is AOV elev., South end piston operated. FAI 73 1-FW-FY-V3-A4 FWIV DTRAIN A CLOSE SOV Deen./Open Energ./Closed Energizes to drain hydraulic oil/ close 1-NHY-310844 No valve. Eval'd under FW-V-57. E87/6p 74 1-FW-FY-V4-B4 FWIV DTRAIN B CLOSE SOV Deen./Open Energ./Closed Energizes to drain hydraulic oil/ close 1-NHY-310844 No valve. Eval'd under FW-V-57. E88/6k 75 CO-TK-25 CST CONDESATE STORAGE TANK >212K gal >212K gal Suction source for EFW / SG Inventory PID-1-CO-D20426 In yard, Southeast Yes Control corner of Turbine Bldg 76 1-MS-V-5 MS-PV-3001 ISOLATION VALVE Locked Open Open Manual valve, excluded PID-MS-D20580 No 77 1-MS-PV-3001 ATMOS STEAM DUMP VALVE for Closed Open/throttled Valve function is to open to control SG PID-MS-D20580 West Pipechase, 28' Yes SG-A steam pressure and RCS cool down elev., South end rate. ASDVs operated remotely from CR or locally by manual action as needed.

78 1-MS-PV-3001-N2 ATMOS STEAM DUMP VALVE A Installed Installed PID-1-IA-B20647 West Pipechase, 28' Yes N2 BOTTLE STORAGE elev., South end 79 MM-742A AIR CYLINDER BACKUP SUPPLY Lined up Lined up Bottled air to back-up the instrument PID-1-IA-B20647 No TO ASDV PV-3001 and MS-V-393 air system (WPC). Eval'd as part of 1-MS-PV-3001-N2 80 MM-742B AIR CYLINDER BACKUP SUPPLY Lined up Lined up Bottled air to back-up the instrument PID-1-IA-B20647 No TO ASDV PV-3001 and MS-V-393 air system (WPC). Eval'd as part of 1-MS-PV-3001-N2 Revision I September 11, 2014 Page 4 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATI'ACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Loti Include on Item # Normal State Desired State NotsefrenelatLcaio ESEL?

81 MM-742C AIR CYLINDER BACKUP SUPPLY Lined up Lined up Bottled air to back-up the instrument PID-1-IA-B20647 No TO ASDV PV-3001 and MS-V-393 air system (WPC). Eval'd as part of 1-MS-PV-3001-N2 82 MS-PCV-3001 PRESSURE REGULATOR VALVE IN SET @ 85-90 SET @ 85-90 Air pressure controllers and SOVs need PID-1-IA-820647 Yes BACKUP AIR (N2) SYSTEM PSIG PSIG to function in Phase 1.

83 MS-PY-3001-1 AIR CONTROL SOV TO ASDV 3001 SET @ 85-90 SET @ 85-90 Used only during M/A station use. PID-l-IA-B20647 - Yes PSIG PSIG SOVs need to function in Phase 1.

84 MS-PY-3001-2 AIR CONTROL SOV TO ASDV 3001 Energ./Open Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

85 MS-PY-3001-3 AIR CONTROL SOV TO ASDV 3001 Deen./Closed Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

86 MS-PY-3001-4 AIR CONTROL SOV TO ASDV 3001 Energ./Closed Deen./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

87 MS-PY-3001-5 AIR CONTROL SOV TO ASDV 3001 Deen./Closed Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

88 MS-PY-3001-6 AIR CONTROL SOV TO ASDV 3001 Energ./Closed Deen./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

89 MS-FY-393 AIR CONTROL SOV TO EFW Energ./Open Deen./Closed Air pressure controllers and SOVs need PID-1-IA-B20647 Yes STEAM VALVE V-393 to function in Phase 1.

90 MS-FY-395A AIR CONTROL SOV TO EFW Deen./Open Energ./Closed Air pressure controllers and SOVs need PID-1-IA-B20647 No STEAM VALVE V-395 to function in Phase 1. Eval'd as part of MS-V-395.

91 1-MS-V-49 MS-PV-3004 ISOLATION VALVE Locked Open Open Manual valve, excluded PID-MS-D20580 No 92 1-MS-PV-3004 ATMOS STEAM DUMP VALVE for Closed Open/throttled Valve function is to open to control SG PID-MS-D20580 West Pipechase, 28' Yes SG-C steam pressure and RCS cool down elev., South end rate. ASDVs operated remotely from CR or locally by manual action as needed.

93 1-MS-PV-3004-N2 ATMOS STEAM DUMP VALVE D Installed Installed PID-1-IA-B20647 West Pipechase, 28' Yes N2 BOTTLE STORAGE elev., South end 94 MM-745A AIR CYLINDER BACKUP SUPPLY Lined up Lined up Bottled air to back-up the instrument PID-1-IA-B20647 No TO ASDV PV-3004 air system (WPC). Eval'd as part of 1-MvS-PV-30D4-N2 95 MM-745B AIR CYLINDER BACKUP SUPPLY Lined up Lined up Bottled air to back-up the instrument PID-1-IA-B20647 No TO ASDV PV-3004 air system (WPC). Eval'd as part of I-MS-PV-3004-N2 96 MS-PCV-3004 PRESSURE REGULATOR VALVE IN SET @ 90 PSIG SET @ 90 PSIG Air pressure controllers and SOVs need PID-1-IA-B20647 Yes BACKUP AIR (N2) SYSTEM to function in Phase 1.

97 MS-PY-3004-1 AIR CONTROL SOV TO ASDV 3004 Energ./Open Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

98 MS-PY-3004-2 AIR CONTROL SOV TO ASDV 3004 Deen./Closed Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

99 MS-PY-3004-3 AIR CONTROL SOV TO ASDV 3004 Energ./Closed Deen./Open Used only during M/A station use. PID-1-IA-B20647 Yes I____ _ _SOVs need to function in Phase 1. 1 1 Revision I September 11, 2014 Page 5 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic A1TACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location include on Item # Normal State Desired State ESEL?

100 MS-PY-3004-4 AIR CONTROL SOV TO ASDV 3004 Deen./Closed Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

101 MS-PY-3004-5 AIR CONTROL SOV TO ASDV 3004 Energ./Closed Deen./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

102 MS-PY-3004-6 AIR CONTROL SOV TO ASDV 3004 Energ./Open Deen./Closed Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

103 1-MS-V-21 MS-PV-3002 ISOLATION VALVE Locked Open Open Manual valve, excluded PID-MS-D20581 No 104 1-MS-PV-3002 ATMOS STEAM DUMP VALVE for Closed Open/throttled Valve function is to open to control SG PID-MS-D20581 East Pipechase, 28' Yes SG-B steam pressure and RCS cool down elev., South end rate. ASDVs operated remotely from CR or locally by manual action as needed.

105 1-MS-PV-3002-N2 ATMOS STEAM DUMP VALVE B Installed Installed PID-1-IA-B20647 East Pipechase, 28' Yes N2 BOTTLE STORAGE elev., South end 106 MM-743A AIR CYLINDER BACKUP SUPPLY Lined up Lined up Bottled air to back-up the instrument PID-1-IA-B20647 No TO ASDV PV-3002 and MS-V-394 air system (EPC). Eval'd as part of 1-MS PV-3002-N2 107 MM-743B AIR CYLINDER BACKUP SUPPLY Lined up Lined up Bottled air to back-up the instrument PID-1-IA-B20647 No TO ASDV PV-3002 and MS-V-394 air system (EPC). Eval'd as part of 1-MS PV-3002-N2 108 MM-743C AIR CYLINDER BACKUP SUPPLY Lined up Lined up Bottled air to back-up the instrument PID-1-IA-B20647 No TO ASDV PV-3002 and MS-V-394 air system (EPC). Eval'd as part of 1-MS.

PV-3002-N2 109 MS-PCV-3002 PRESSURE CONTROL VALVE IN SET @ 85-90 SET @ 85-90 Air pressure controllers and SOVs need PID-1-IA-B20647 Yes BACKUP AIR (N2) SYSTEM PSIG PSIG to function in Phase 1.

110 MS-PY-3002-1 AIR CONTROL SOV TO ASDV 3002 Energ./Open Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

111 MS-PY-3002-2 AIR CONTROL SOV TO ASDV 3002 Deen./Closed Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

112 MS-PY-3002-3 AIR CONTROL SOV TO ASDV 3002 Energ./Closed Deen./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

113 MS-PY-3002-4 AIR CONTROL SOV TO ASDV 3002 Deen./Closed Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

114 MS-PY-3002-5 AIR CONTROL SOV TO ASDV 3002 Energ./Closed Deen/Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

115 MS-PY-3002-6 AIR CONTROL SOV TO ASDV 3002 Energ./Open Deen./Closed Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

116 MS-FY-394A AIR CONTROL SOV TO EFW Deen./Closed Energ./Open Air pressure controllers and SOVs need PID-1-IA-B20647 Yes STEAM VALVE V-394 to function in Phase 1.

117 MS-FY-394B AIR CONTROL SOV TO EFW Energ./Open Deen./Closed Air pressure controllers and SOVs need PID-1-IA-B20647 Yes STEAM VALVE V-394 to function in Phase 1.

118 MS-FY-395B AIR CONTROL SOV TO EFW Deen./Open Energ./Closed Air pressure controllers and SOVs need PID-1-IA-B20647 No STEAM VALVE V-395 to function in Phase 1. Eval'd as part of I_ _MS-V-395.I_ I Revision 1 September 11, 2014 Page 6 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic A'TACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

119 1-MS-V-35 MS-PV-3003 ISOLATION VALVE Locked Open Open Manual valve, excluded PID-MS-D20581 No 120 1-MS-PV-3003 ATMOS STEAM DUMP VALVE for Closed Open/throttled Valve function is to open to control SG PID-MS-D20581 East Pipechase, 28' Yes SG-C steam pressure and RCS cool down elev., South end rate. ASDVs operated remotely from CR or locally by manual action as needed.

121 1-MS-PV-3003-N2 ATMOS STEAM DUMP VALVE C Installed Installed PID-1-IA-B20647 East Pipechase, 28' Yes N2 BOTTLE STORAGE elev.. South end 122 MM-744A AIR CYLINDER BACKUP SUPPLY Lined up Lined up Bottled air to back-up the instrument PID-1-IA-B20647 No TO ASDV PV-3003 air system (EPC). Eval'd as part of 1-MS PV-3003-N2 123 MM-744B AIR CYLINDER BACKUP SUPPLY Lined up Lined up Bottled air to back-up the instrument PID-1-IA-B20647 No TO ASDV PV-3003 air system (EPC). Eval'd as part of 1-MS PV-3003-N2.

124 MS-PCV-3003 PRESSURE REGULATOR VALVE IN SET @ 90 PSIG SET @ 90 PSIG Air pressure controllers and SOVs need PID-1-IA-B20647 No BACKUP AIR (N2) SYSTEM to function in Phase 1. Eval'd as part of

_,1-MS-PV-3003-N 2.

125 MS-PY-3003-1 AIR CONTROL SOV TO ASDV 3003 Energ./Open Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

126 MS-PY-3003-2 AIR CONTROL SOV TO ASDV 3003 Deen./Closed Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

127 MS-PY-3003-3 AIR CONTROL SOV TO ASDV 3003 Energ./Closed Deen./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

128 MS-PY-3003-4 AIR CONTROL SOV TO ASDV 3003 Deen./Closed Energ./Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

129 MS-PY-3003-S AIR CONTROL SOV TO ASDV 3003 Energ./Closed Deen/Open Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

130 MS-PY-3003-6 AIR CONTROL SOV TO ASDV 3003 Energ./Open Deen./Closed Used only during M/A station use. PID-1-IA-B20647 Yes SOVs need to function in Phase 1.

131 1-MS-V-86 MAIN STEAM ISOLATION VALVE Open Closed Not required, per ESEL screening PID-MS-D20583 West Pipechase, 28' No SG-A requirements elev., North end 132 1-MS-FY-86A-1 MSIV 86 TRAIN A FAST CLOSE Deen./Closed Energ./Open Solenoid functions to drain hydraulic NHY-310841 sh. No SOLENOID oil to reservoir & close valve. MSIVs E87/14

_creend out of ESEL.

133 1-MS-FY-86B-1 MSIV 86 TRAIN B FAST CLOSE Deen./Closed Energ./Open Solenoid functions to drain hydraulic NHY-310841 sh. No SOLENOID oil to reservoir & close valve. MSIVs E88/14 I_ screend out of ESEL_

134 1-MS-V-204 MAIN STEAM ISOLATION VALVE Deen./ Locked Deen./ Locked Valve is MOV, normally Closed. PID-MS-D20583 No BY PASS VALVE SG-A Closed Closed Remains closed 135 1-MS-V-6 MAIN STEAM SAFETY VALVE SG-A Closed Closed Safety valve NC / remain closed, no PID-MS-D20580 No Fexternal control, not required for FLEX

_strateev. excluded Revision 1 September 11, 2014 Page 7 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

136 1-MS-V-7 MAIN STEAM SAFETY VALVE SG-A Closed Closed Safety valve NC / remain closed, no PID-MS-D20580 No external control, not required for FLEX strategv, excluded 137 1-MS-V-8 MAIN STEAM SAFETY VALVE SG-A Closed Closed Safety valve NC / remain closed, no PID-MS-D20580 No external control, not required for FLEX

_trateev. excluded 138 1-MS-V-9 MAIN STEAM SAFETY VALVE SG-A Closed Closed Safety valve NC / remain closed, no PID-MS-D20580 No external control, not required for FLEX strategv. excluded 139 1-MS-V-10 MAIN STEAM SAFETY VALVE SG-A Closed Closed Safety valve NC / remain closed, no PID-MS-D20580 No external control, not required for FLEX strateavy excluded 140 1-MS-V-88 MAIN STEAM ISOLATION VALVE Open Closed Not required, per ESEL screening PID-MS-D20583 East Pipechase, 28' No SG-B requirements elev., North end 141 1-MS-FY-88A-2 MSIV 88 TRAIN A FAST CLOSE Deen./Closed Energ./Open Solenoid functions to drain hydraulic NHY-310841 sh. No SOLENOID oil to reservoir & close valve. MSIVs E2T/12 screend out of ESEL.

142 1-MS-FY-88B-2 MSIV 88 TRAIN B FAST CLOSE Deen./Closed Energ./Open Solenoid functions to drain hydraulic NHY-310841 sh. No SOLENOID- oil to reservoir & close valve. MSIVs E2U/12

_creend out of ESEL-143 1-MS-V-205 MAIN STEAM ISOLATION VALVE Deen./ Locked Deen./Locked Valve is MOV, normally Closed. PID-MS-D20583 No BY PASS VALVE SG-B Closed Closed Remains closed 144 1-MS-V-22 MAIN STEAM SAFETY VALVE SG-B Closed Closed Safety valve NC / remain closed, no PID-MS-D20581 No external control, not required for FLEX strategv, excluded 145 1-MS-V-23 MAIN STEAM SAFETY VALVE SG-B1 Closed Closed Safety valve NC / remain closed, no PID-MS-D20581 No external control, not required for FLEX strateev. excluded 146 1-MS-V-24 MAIN STEAM SAFETY VALVE SG-B Closed Closed Safety valve NC / remain closed, no PID-MS-D20581 No external control, not required for FLEX strateevy excluded 147 1-MS-V-25 MAIN STEAM SAFETY VALVE SG-B Closed Closed Safety valve NC / remain closed, no PID-MS-D20581 No external control, not required for FLEX strategv. excluded 148 1-MS-V-26 MAIN STEAM SAFETY VALVE SG-B Closed Closed Safety valve NC / remain closed, no PID-MS-D20581 No external control, not required for FLEX strateyv, excluded 149 1-MS-V-90 MAIN STEAM ISOLATION VALVE Open Closed Not required, per ESEL screening PID-MS-D20583 East Pipechase, 28' No SG-C requirements elev., North end 150 1-MS-FY-90A-3 MSIV 90 TRAIN A FAST CLOSE Deen./Closed Energ./Open Solenoid functions to drain hydraulic NHY-310841 sh. No SOLENOID oil to reservoir & close valve. MSIVs E2T/14

_screend out of ESEL. I I Revision I September 11, 2014 Page 8 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL em Equip ID Description Equipment Equipment Notes Reference Plant Location Icueo Include on Item # Normal State Desired State ESEL?

151 1-MS-FY-90B-3 MSIV 90 TRAIN B FAST CLOSE Deen/Closed Energ./Open Solenoid functions to drain hydraulic NHY-310841 sh. No SOLENOID oil to reservoir & close valve. MSIVs E2U/14 screend out of ESEL.

152 1-MS-V-206 MAIN STEAM ISOLATION VALVE Deen./ Locked Deen./Locked Valve is MOV, normally Closed. PID-MS-D20583 No BY PASS VALVE SG-C Closed Closed Remains closed 153 1-MS-V-36 MAIN STEAM SAFETY VALVE SG- Closed Closed Safety valve NC / remain closed, no PID-MS-D20581 No C external control, not required for FLEX strategv. excluded 154 1-MS-V-37 MAIN STEAM SAFETY VALVE SG- Closed Closed Safety valve NC / remain closed, no PID-MS-D20581 No C external control, not required for FLEX strategv. excluded 155 1-MS-V-38 MAIN STEAM SAFETY VALVE SG- Closed Closed Safety valve NC / remain closed, no PID-MS-D20581 No C external control, not required for FLEX strategv. excluded 156 1-MS-V-39 MAIN STEAM SAFETY VALVE SG- Closed Closed Safety valve NC / remain closed, no PID-MS-D20581 No C external control, not required for FLEX strategv. excluded 157 1-MS-V-40 MAIN STEAM SAFETY VALVE SG- Closed Closed Safety valve NC / remain closed, no PID-MS-D20581 No C external control, not required for FLEX strategv. excluded 158 1-MS-V-92 MAIN STEAM ISOLATION VALVE Open Closed Not required, per ESEL screening PID-MS-D20583 West Pipechase, 28' No SG-D requirements elev., North end 159 1-MS-FY-92A-4 MSIV 92 TRAIN A FAST CLOSE Deen./Closed Energ./Open Solenoid functions to drain hydraulic NHY-310841 sh. No SOLENOID oil to reservoir & close valve. MSIVs E87/18 I screend out of ESEL.

160 1-MS-FY-90B-4 MSIV 92 TRAIN B FAST CLOSE Deen./Closed Energ./Open Solenoid functions to drain hydraulic NHY-310841 sh. No SOLENOID oil to reservoir & close valve. MSIVs E88/9 z__rrend out of ESEL_

161 17MS-V-207 MAIN STEAM ISOLATION VALVE Deen. Locked Deen./Locked Valve is MOV, normally Closed. PID-MS-D20583 No BY PASS VALVE SG-D Closed Closed Remains closed 162 1-MS-V-50 MAIN STEAM SAFETY VALVE SG- Closed Closed Safety valve NC / remain closed, no PID-MS-D20580 No D external control, not required for FLEX strategv, excluded 163 1-MS-V-51 MAIN STEAM SAFETY VALVE SG- Closed Closed Safety valve NC / remain closed, no PID-MS-D20580 No D external control, not required for FLEX

,tratepv, excluded 164 1-MS-V-52 MAIN STEAM SAFETY VALVE SG- Closed Closed Safety valve NC / remain closed, no PID-MS-D20580 No D external control, not required for FLEX strategy, excluded 165 1-MS-V-53 MAIN STEAM SAFETY VALVE SG- Closed Closed Safety valve NC / remain closed, no PID-MS-D20580 No D external control, not required for FLEX strategy, excluded Revision I September 11, 2014 Page 9 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Locationon Item # Normal State Desired State ESEL?

166 1-MS-V-54 MAIN STEAM SAFETY VALVE SG- Closed Closed Safety valve NC / remain closed, no PID-MS-D20580 No D external control, not required for FLEX

_strategv. excluded FLEX ESEL - Decay Heat Removal via SG - EFW Turbine Driven Pump (TDEFW), ASDVs, MSIVs - Electrical 167 1-EDE-B-1-A VITAL 125VDC BATTERY A Float Charge Discharge Provides power to vital shutdown I-NHY-310042 Train A Ess switchgear Yes panels & loads 21' elev., East end 168 1-EDE-CP-227 VITAL 125VDC BATTERY BUS Bolted in, Bolted in, Provides power from Battery to DC Bus 1-NHY-310042 Train A Ess swgr 21' Yes 1600A SUPPLY FUSES (2) connected connected switchpear elev., W. of MCC-111 169 1-EDE-SWG-11-A- 125V DC BUS 11A NORMAL Closed Closed Evaluated as part of 1-EDE-SWG-11-A 1-NHY-310042 No

_DM3 BATTERY SUPPLY BREAKER 170 1-EDE-SWG-11-A VITAL 125VDC BUS A Energized Energized 1-NHY-310042 Train A Ess switchgear Yes 21' elev., East end 171 1-EDE-SWG-11-A- VITAL 125V DC PANEL 112A Closed Closed Evaluated as part of 1-EDE-SWG-11-A 1-NHY-310042 No DM8 SUPPLY BREAKER 172 1-EDE-PP-112-A VITAL 125V DC PANEL 112A Energized Energized 1-NHY-310042 Train A Ess swgr 21' Yes 173 1-EDE-PP-112-A- FWIV 30, 39, 48, 57 TRAIN A On On Ability to close FWIVs and ensure EFW NHY-310107 E87a, No CK6 SOLENOID POWER flows only to SGs. Evaluated as part of NHY-310844 E87/6 1-ED E-PP-112-A 174 1-EDE-CP-248 TRAIN A AUX RELAY PANEL Energized Energized NHY-310236 GN9a, Train A Ess swgr 21' Yes

<GN9> IN TRAIN A SWITCHGEAR elev., W. of MCC-111 175 FW-IX-A FW-V-30 AUX RELAY De-energized Energized Energizes to close FWIV. Evaluated as NHY-310844 E87/61 No part of EDE-CP-248 176 FW-IX-3A FW-V-39 AUX RELAY De-energized Energized Energizes to close FWIV. Evaluated as NHY-310844 E87/6m No Dart of EDE-CP-248 177 FW-IX-6A FW-V-48 AUX RELAY De-energized Energized Energizes to close FWIV. Evaluated as NHY-310844 E87/6n No I part of EDE-CP-248 178 FW-IX-9A FW-V-57 AUX RELAY De-energized Energized Energizes to close FWIV. Evaluated as NHY-310844 E87/6p No Dart of EDE-CP-248 179 1-EDE-PP-112-A- CC-V-32 SF HX PCCW COOLING On On Ability to align Train A CC to SF HX 15A. NHY-310107 E87a, No CK12 AOV Evaluated as part of 1-EDE-PP-112-A. NHY-310895 E87/12 180 1-EDE-PP-112-A- MS-V-393, 394, & 395 TRAIN A On On Ability to open TDEFW steam supply NHY-310107 E87a, No CK13 SOLENOID POWER AOVs. Evaluated as part of 1-EDE-PP- NHY-310841 E87/13 I_ _112-A 181 1-EDE-PP-112-A- MS-V-86, MSIV A,TRAIN A On On Energize to close MSIV. Evaluated as NHY-310107 E87a, No CK14 SOLENOID POWER part of 1-EDE-PP-112-A. NHY-310841 E87/14 182 1-MS-CP-184, MSIV A AUX RELAY K103 De-energized Energized Energizes to actuate closing solenoid. NHY-310841 E87/14a No K103 Evaluated as part of 1-MS-CP-184.

183 1-EDE-PP-112-A- MS-V-92, MSIV D,TRAIN A On On Energize to close MSIV. Evaluated as NHY-310107 E87a, No CK18 SOLENOID POWER part of 1-EDE-PP-112-A. NHY-310841 E87/18 Revision 1 September 11, 2014 Page 10 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Plantuocatio Item# Equip ID Description NormaSt Esired t Notes Reference Plant Location Itm#Normal State Desired State ESEL?

184 l-MS-CP-184, MSIV DAUX RELAY Klll De-energized Energized Energizes to actuate closing solenoid. NHY-310841 E87/18a No Klll Evaluated as part of l-MS-CP-184.

185 l-EDE-PP-112-A- RC-PCV-456A, PORV A, SOLENOID On On Energizes to open PORV. Required NHY-310107 E87a, No CK19 POWER WOG FLEX strategy equipment. NHY-310882 E87/19 Evaluated as part of 1-EDE-PP-112-A 186 I-EDE-MM-578 TRAIN A FUSE PANEL, EDE-MM- Installed, Installed, NHY-310236 E4Aa Train A Ess swgr 21' Yes 578 <E4A> energized energized elev.. W. of MCC-111 187 1-EDE-MM-578- PORV A FUSES, FUll & FU12, AT Installed, Installed, Evaluated as part of 1-EDE-MM-578 NHY-310882 E87/19 No FUll & 12 EDE-MM-578 <E4A> connected connected 188 1-EDE-MCC-511 MOTOR CONTROL CENTER E511 Energized Energized 1-NHY-310023 DG A Bldg, Engine Yes room, North side 189 PORV A 42 125V DC CONTACTOR AT MCC- De-energized De-energized Evaluated as part of 1-EDE-MCC-511 NHY-310882 E87/19 No DEVICE 511 <J3M>

190 1-EDE-SWG-11-A- VITAL 125V DC PANEL 113A Closed Closed Evaluated as part of 1-EDE-SWG-11-A 1-NHY-310042 No DM0 SUPPLY BREAKER 191 1-EDE-PP-113-A VITAL 125V DC PANEL 113A Energized Energized 1-NHY-310042 A Ess swgr, at DC Bus Yes 192 1-EDE-PP-113-A- CC-TV-2171-1 & 2 SOLENOID On On Ability to control Train A PCCW NHY-310107 E2Ta, No CK3 POWER temperature. Evaluated as part of 1- NHY-310895 E2T/3 EDE-PP-113-A.

193 1-EDE-PP-113-A- MS-PV-3001, ASDV A, SOLENOID On On Ability to control ASDV with M/A NHY-310107 E2Ta, No CK8 1,2, 3, & 4 POWER station or by using jog control. NHY-310841 E2T/8 Evaluated as part of 1-EDE-PP-113-A.

194 1-EDE-PP-113-A- MS-PV-3003, ASDV C SOLENOID On On Ability to control ASDV with M/A NHY-310107 E2Ta, No CK10 1,2, 3, & 4 POWER station or by using jog control. NHY-310841 E2T/1D Evaluated as part of 1-EDE-PP-113-A.

195 1-EDE-PP-113-A- MS-V-88, MSIV B, TRAIN A On On Energize to close MSIV. Evaluated as NHY-310107 E2Ta, No CK12 SOLENOID POWER part of 1-EDE-PP-113-A. NHY-310841 E2T/12 196 1-MS-CP-182, MSIV B AUX RELAY K103 De-energized Energized Energizes to actuate closing solenoid NHY-310841 E2T/12a No K103 Evaluated as part of 1-MS-CP-182.

197 1-EDE-PP-113-A- MS-V-90, MSIV C, TRAIN A On On Energize to close MSIV. Evaluated as NHY-310107 E2Ta, No CK14 SOLENOID POWER part of 1-EDE-PP-112-A. NHY-310841 E2T/14 198 1-MS-CP-182, MSIV C AUX RELAY Klll De-energized Energized Energizes to actuate closing solenoid NHY-310841 E2T/14a No Klll Evaluated as part of 1-MS-CP-182.

199 1-EDE-PP-113-A- MS-PV-3002, ASDV B SOLENOID 5 On On Ability to control ASDV by using jog NHY-310107 E2Ta, No CK15 & 6 POWER control. Evaluated as part of 1-EDE-PP- NHY-310841 E2T/15 112-A.

Revision 1 September 11, 2014 Page 11 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

200 1-EDE-PP.113-A- MS-PV-3004, ASDV D SOLENOID On On Ability to control ASDV by using jog NHY-310107 E2Ta, No CK16 5 & 6 POWER control. Evaluated as part of 1-EDE-PP- NHY-310841 E2T/16 113-A, 201 1-EDE-SWG-11-A- EDE-I-1-A, VITAL INVERTER A DC Closed Closed Evaluated as part of 1-EDE-SWG-11-A 1-NHY-310042 No DM6 SUPPLY BREAKER 202 1-EDE-I-1-A VITAL INVERTER A Energized Energized Provides power to vital shutdown 1-NHY-310042 Train A Ess swgr 21' Yes panels & instruments elev., East end 203 1-EDE-I-1-A-2CB VITAL INVERTER A LOCAL DC On On Evaluated as part of 1-EDE-i-1-A 1-NHY-310105 D27d No INPUT BREAKER 204 1-EDE-I-1-A-3CB VITAL INVERTER A LOCAL On On Evaluated as part of 1-EDE-i-1-A 1-NHY-310105 D27d No INVERTER SECTION DC INPUT BREAKER 205 I1-EDE-I-1-A-1T VITAL INVERTER A 7.5 KVA Energized Energized Evaluated as part of 1-EDE-i-1-A 1-NHY-310105 D27d No INVERTER TRANSFORMER 206 1-EDE-I-1-A-2T VITAL INVERTER A 7.5 KVA Energized Energized Evaluated as part of 1-EDE-i-1-A 1-NHY-310105 D27d No POWER PANEL TRANSFORMER 207 1-EDE-I-1-A-4CB VITAL INVERTER A LOCAL On On Evaluated as part of 1-EDE-i-1-A 1-NHY-310105 D27d No INVERTER SECTION AC OUTPUT BREAKER 208 1-EDE-I-1-A-RR VITAL INVERTER A INTERNAL Various energ./ Various energ./ Relays 1CSR,4CB, CSRT, RR, ACL & 8R 1-NHY-310105 D27d No RELAYS & RESISTORS de-energ. states de-energ. states resistors must function correctly.

Evaluated as part of 1-EDE-i-1-A.

209 1-EDE-PP-1-A- VITAL POWER PANEL 1A SUPPLY On On 1-NHY-310105 D27e No CK15 BREAKER FROM INVERTER A 210 1-EDE-PP-1-A VITAL POWER PANEL 1A Energized Energized NHY-310105 E01a Train A Ess swgr 21' Yes 211 1-EDE-PP-1-A-CK1 CHANNEL I NI CABINET CONTROL On On Operator Info only, non required safe NHY-310105 E01a No POWER shutdown load NHY-310943 FC6b 212 1-EDE-PP-1-A-CK3 CHANNEL I NI CABINET On On Operator Info only, non required safe NHY-310105 EO1a No INSTRUMENT POWER shutdown load NHY-310943 FC6b 213 1-EDE-PP-1-A-CK9 CHANNEL I PROTECTION On On Required safe shutdown FLEX NHY-310105 E01a No CABINET, MM-CP-1, POWER instrumentation. Evaluated as part of 1 NHY-310942 E01/9 FDE-PP-1-A, 214 1-EDE-SWG-11-A- EDE-I-1-E, VITAL INVERTER E DC Closed Closed Evaluated as part of 1-EDE-SWG-11-A 1-NHY-310042 No DM7 SUPPLY BREAKER 215 1-EDE-I-1-E VITAL INVERTER E Energized Energized Provides power to vital shutdown 1-NHY-310042 Train A Ess swgr 21' Yes panels & instruments elev., East end 216 1-EDE-I-1-E-A13- VITAL INVERTER E DC SUPPLY Installed, Installed, Evaluated as part of 1-EDE-i-1-E 1-NHY-310105 DD3h No F1 FUSES A13-F1 & A13-F2 connected connected 217 1-EDE-I-1-E- VITAL INVERTER E LOCAL DC On On Evaluated as part of 1-EDE-i-1-E 1-NHY-310105 DD3h No CB131 INPUT BREAKER I 218 I-EDE-I-1-E- VITAL INVERTER E LOCAL AC On On Evaluated as part of 1-EDE-i-1-E I-NHY-310105 DD3h No CB133 OUTPUT BREAKER I Revision 1 September 11, 2014 Page 12 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item # Equip ID Description Normal State Desired State ESEL?

219 1-EDE-I-1-E-RR VITAL INVERTER E INTERNAL Various energ./ Various energ./ Internal components must function 1-NHY-310105 DD3g No RELAYS, TRANSFORMERS, FUSES, de-energ. States de-energ. States correctly. Evaluated as part of EDE-I-i- & h CAPACITORS, & LOGIC BOARDS E 220 1-EDE-CP-1-E - VITAL INVERTER E STATIC Various energ./ Various energ./ Internal components must function 1-NHY-310105 DD3f Yes ElY SWITCH PANEL TRANSFORMERS, de-energ. States de-energ. States correctly RELAYS, & LOGIC BOARDS 221 1-EDE-PP-1-E - POWER PANEL 1E NORMAL On On Evaluated as part of 1-EDE-PP-1-E 1-NHY-310105 DD3e No NORM-BKR SUPPLY BKR FROM INVERTER 222 1-EDE-PP-1-E VITAL POWER PANEL 1E Energized Energized NHY-310105 EH9a Train A Ess swgr, NE Yes 223 1-EDE-PP-1-E - VITAL BOP CAB 152A, MM-CP- On On Operator Info only, non required safe 1-NHY-310952 EH9/1 No CK1 152-A, SUPPLY POWER shutdown FLEX instruments.

224 1-EDE-PP-1-E - TRAIN A HAGEN CONTROLLER On On Operator use only, non required 1-NHY-310940 EH9/7 No CK7 POWER controls for letdown, charging, seal iniection, & Train A RHR 225 1-EDE-PP-1-E - VITAL BOP CAB 297A, MM-CP- On On Cabinet provides power to required 1-NHY-310952 No CK19 297-A, SUPPLY POWER safe shutdown FLEX instruments. EH9/19 Evaluated as oart of 1-EDE-PP-1-E.

226 1-EDE-PP-1-E - ED-PP-12-E SUPPLY BREAKER On On Provides power to vital control 1-NHY-310105 EH9a No 227 1-ED-PP-12-E NON VITAL POWER PANEL 12E Energized Energized NHY-310105 EH8a Train A Ess swgr, SE end Yes 228 1-ED-PP-12-E - CONTROL CAB 8, MM-CP-8, On On Provides power to CHAN IVvital 1-NHY-310105 EH8a No CK10 SUPPLY BREAKER controls for operators. Evaluated as

_art of 1-ED-PP-12-E.

229 I-ED-PP-12-E - CONTROL CAB 8, MM-CP-6, On On Provides power to CHAN II vital 1-NHY-310105 EH8a No CK1l SUPPLY BREAKER controls for operators. Evaluated as part of 1-ED-PP-12-E.

230 1-EDE-PP-1-E - EDE-PP-11-E SUPPLY BREAKER On On Provides power to vital shutdown FLEX 1-NHY-310105 EH9a No CK13 instruments. Evaluated as part of 1-EDE-PP-I-F.

231 1-EDE-PP-11-E VITAL POWER PANEL liE Energized Energized NHY-310105 ElSa Train A Ess swgr, NE Yes 232 1-EDE-PP-11-E - MSIV 86 & 92 LOGIC CABINET, On On Provides MSIV close relay K103 & Kill I-NHY-310105 ElSa No CK7 MS-CP-184 SUPPLY BREAKER power - required. Evaluated as part of 1-DED-PP-11-E.

233 1-MS-CP-184 MS-CP-184 TRAIN A MSIV LOGIC On On MSIVs not required per ESEL screening l-NHY-310105 E1S/7 East pipechase, 3' elev., No CABINET requirements. room on left 234 1-MS-CP-184-CB1 MS-CP-184 LOGIC CABINET, On On Evaluated as part of 1-MS-CP-184. i-NHY-310105 EIS/7 No LOCAL BREAKER CB1 235 1-MS-CP-184-CB2 MS-CP-184 LOGIC CABINET, On On Evaluated as part of I-MS-CP-184. 1-NHY-310105 ElS/7 No LOCAL BREAKER CB2 236 1-MS-CP-184- MS-CP-184 LOGIC CABINET, 120- Energized Energized TI, T2, T3, & T4. Evaluated as part of i- 1-NHY-310105 EiS/7 No

_XFMR 48V TRANSFORMERS (41 _MS-CP-184.

237 1-MS-CP-184-PS MS-CP-184 48V POWER SUPPLY Installed, Installed, PSI, PS2, PS3, & PS4. Evaluated as part 1-NHY-310105 ElS/7 No MODULES (4) connected connected of I-MS-CP-184. I I I Revision 1 September li, 2014 Page 13 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATrACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

238 1-MS-CP-184-FU MS-CP-184 CARD FRAME FUSES Installed, Installed, Evaluated as part of 1-MS-CP-184. i-NHY-310105 EIS/7 No F105 & F106 connected connected 239 1-MS-CP-184- MS-CP-184 CABINET LOGIC Installed, Installed, Field buffer (2), Valve control module 1-NHY-310105 EIS/7 No CARD CARDS connected connected (2), Relay driver (2). Evaluated as part of I-MS-CP-184.

240 1-EDE-PP-11-E - MSIV 88 & 90 LOGIC CABINET, On On Provides MSIV close relay K103 & Kill 1-NHY-310105 EISa No CK9 MS-CP-182 SUPPLY BREAKER power - required. Evaluated as part of 1-EDE-PP-11-E, 241 1-MS-CP-182 MS-CP-182 TRAIN A MSIV LOGIC On On MSIVs not required per ESEL screening 1-NHY-310105 EIS/7 East pipechase, 3' elev., Yes CABINET reouirements. room on left 242 1-MS-CP-182-CB1 MS-CP-182 LOGIC CABINET, On On Evaluated as part of 1-MS-CP-182. 1-NHY-310105 EIS/9 No LOCAL BREAKER CB1 243 1-MS-CP-182-CB2 MS-CP-184 LOGIC CABINET, On On Evaluated as part of 1-MS-CP-182. 1-NHY-310105 EIS/9 No LOCAL BREAKER CB2 244 I-MS-CP-182- MS-CP-182 LOGIC CABINET, 120- Energized Energized T1, T2, T3, & T4. Evaluated as part of 1- 1-NHY-310105 EiS/9 No XFMR 48V TRANSFORMERS (4) MS-CP-182.

245 I-MS-CP-182-PS MS-CP-182 48V POWER SUPPLY Installed, Installed, PS1, PS2, PS3, & PS4. Evaluated as part I-NHY-310105 EiS/9 No MODULES (4) connected connected of 1-MS-CP-182.

246 1-MS-CP-182-FU MS-CP-182 CARD FRAME FUSES Installed, Installed, Evaluated as part of 1-MS-CP-182. 1-NHY-310105 EIS/9 No F105 & F106 connected connected 247 1-MS-CP-182- MS-CP-124 CABINET LOGIC Installed, Installed, Field buffer (2), Valve control module i-NHY-310105 EIS/9 No CARD CARDS connected connected (2), Relay driver (2). Evaluated as part of 1-MS-CP-182.

248 1-EDE-PP-11-E - RVLIS TRAIN A PLASMA DISPLAY On On Required FLEX instrumentation. 1-NHY-310105 EiSa No CK11 SUPPLY BREAKER Evaluated as part of i-EDE-PP-11-E. NHY-310965 EIS/11 249 1-EDE-PP-11-E - RVLIS/ HELB TRAIN A CONTROL On On Required FLEX instrumentation. I-NHY-310105 EISa No CK17 CABINET SUPPLY BREAKER Evaluated as part of 1-EDE-PP-11-E. NHY-310965 EIS/17 250 1-EDE-PP-11-E - RVLIS TRAIN A PLASMA DISPLAY On On Required FLEX instrumentation. I-NHY-310105 EiSa No CK18 SUPPLY BREAKER Evaluated as part of l-EDE-PP-11-E. NHY-310965 EIS/11 251 1-EDE-B-1-C VITAL 125VDC BATTERY C Float Charge Discharge Provides power to vital shutdown 1-NHY-310042 Train A Ess swgr, East Yes panels & loads end 252 i-EDE-CP-229 VITAL 125VDC BATTERY BUS Bolted in, Bolted in, Provides power from Battery to DC Bus I-NHY-310042 Train A Ess swgr, East Yes 1600A SUPPLY FUSES (2) connected connected switchgear end 253 1-EDE-SWG-11-C- 125V DC BUS 11C NORMAL Closed Closed Evaluated as part of I-EDE-SWG-11-C 1-NHY-310042 No DP7 BATTERY SUPPLY BREAKER 254 1-EDE-SWG-11-C VITAL 125VDC BUS C Energized Energized 1-NHY-310042 Train A Ess swgr, East Yes end 255 I-EDE-SWG-11-C- EDE-I-i-C, VITAL INVERTER C DC Closed Closed Evaluated as part of I-EDE-SWG-11-C I-NHY-310042 No DP9 SUPPLY BREAKER _ 1 256 1-EDE-I-1-C VITAL INVERTER C Energized Energized Provides power to vital shutdown I-NHY-310042 Train A Ess swgr, East Yes I I I oanels & instruments I end I _ _

Revision I September 11, 2014 Page 14 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATrACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

257 1-EDE-I-1-C-2CB VITAL INVERTER C LOCAL DC On On Evaluated as part of 1-EDE-I-1-C. 1-NHY-310105 D30d No INPUT BREAKER 258 1-EDE-I-1-C-3CB VITAL INVERTER C LOCAL On On Evaluated as part of 1-EDE-l-1-C. 1-NHY-310105 D30d No INVERTER SECTION DC INPUT BREAKER 259 1-EDE-I-1-C-1T VITAL INVERTER C 7.5 KVA Energized Energized Evaluated as part of 1-EDE-I-1-C. 1-NHY-310105 D30d No INVERTER TRANSFORMER 260 1-EDE-I-1-C-2T VITAL INVERTER C 7.5 KVA Energized Energized Evaluated as part of 1-EDE-I-1-C. 1-NHY-310105 D30d No POWER PANEL TRANSFORMER 261 1-EDE-I-1-C-4CB VITAL INVERTER C LOCAL On On Evaluated as part of 1-EDE-I-1-C. 1-NHY-310105 D30d No INVERTER SECTION AC OUTPUT BREAKER 262 1-EDE-I-1-C-RR VITAL INVERTER C INTERNAL Various energ./ Various energ./ Relays 1CSR,4CB, CSRT, RR, ACL & 8R 1-NHY-310105 D30d No RELAYS & RESISTORS de-energ. states de-energ. states resistors must function correctly.

Evaluated as part of 1-EDE-i-1-C.

263 1-EDE-PP-1-C- VITAL POWER PANEL 1C SUPPLY On On Evaluated as part of 1-EDE-PP-1-C. 1-NHY-310105 D30e No CK15 BREAKER FROM INVERTER C 264 1-EDE-PP-1-C VITAL POWER PANEL 1C Energized Energized NHY-310105 E03a Train A Ess swgr, NE Yes 265 1-EDE-PP-1-C-CK1 CHANNEL IIINI CABINET On On Operator Info only, non required safe NHY-310105 E03a No CONTROL POWER shutdown load NHY-310943 FG3b 266 1-EDE-PP-1-C-CK3 CHANNEL III NI CABINET On On Operator Info only, non required safe NHY-310105 EO3a No INSTRUMENT POWER shutdown load NHY-310943 FG3b 267 1-EDE-PP-1-C-CK9 CHANNEL IIIPROTECTION On On Required safe shutdown FLEX NHY-310105 E03a No CABINET, MM-CP-3, POWER instrumentation. Evaluated as part of 1 NHY-310942 E04/9 IEDE-PP-i-C_,

268 1-EDE-PP-1-C - ED-PP-3-C SUPPLY BREAKER On On Provides power to Operator controls, 1-NHY-310105 E03a No CK14 MM-CP-7. Evaluated as part of 1-EDE-PP-i-C_,

269 1-ED-PP-3-C NON VITAL AC POWER PANEL On On 1-NHY-310105 EH7a Train A Ess swgr, SE end Yes 270 1-ED-PP-3-C -CK9 CONTROL CAB 7, MM-CP-7, On On Provides power to CHAN IIIvital 1-NHY-310105 EH7a No SUPPLY BREAKER controls for operators. Evaluated as part of 1-ED-PP-3-C.

271 1-EDE-B-1-B VITAL 125VDC BATTERY B Float Charge Discharge Provides power to vital shutdown 1-NHY-310042 Train B Ess swgr, East Yes panels & loads end 272 1-EDE-CP-228 VITAL 125VDC BATTERY BUS Bolted in, Bolted in, Provides power from Battery to DC Bus 1-NHY-310042 Train B Ess swgr, East Yes 1600A SUPPLY FUSES (2) connected connected switchgear end 273 1-EDE-SWG-11-B- 125V DC BUS 11B NORMAL Closed Closed Evaluated as part of EDE-SWG-11-B. 1-NHY-310042 No DN5 BATTERY SUPPLY BREAKER 1 274 1-EDE-SWG-11-B VITAL 125VDC BUS B Energized Energized 1-NHY-310042 Train B Ess swgr, East Yes 1 _1 -1_ end 275 1-EDE-SWG-11-B- VITAL 125V DC PANEL 112B Closed Closed Evaluated as part of EDE-SWG-11-B. 1-NHY-310042 No Revision 1 September 11, 2014 Page 15 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATrACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Loti include on Item # Normal State Desired State NotesReference PlantLocation ESEL?

276 1-EDE-PP-112-B VITAL 125V DC PANEL 112B Energized Energized 1-NHY-310042 Train B Ess swgr, S. wall Yes 277 1-EDE-PP-112-B- 1-RC-FV-2881, HEAD VENT On On Required WOG FLEX strategy required NHY-310107 E88a, No CK1 SOLENOID POWER equipment. Evaluated as part of EDE- NHY-310882 E88/1 PP-112-B..

278 1-EDE-MM-580 TRAIN B FUSE PANEL EDE-MM- Installed, Installed, NHY-310236 E4Ca Train B Ess swgr, S. wall Yes 580 <E4C> Energized Energized 279 1-EDE-MM-580- RC-FV-2881 FUSES, FU9 & FUIO, Installed, Installed, Evaluated as part of EDE-MM-580.. NHY-310107 E88a, No FU9 & 10 AT EDE-MM-580 <E4C> connected connected NHY-310882 E88/1 280 l-EDE-PP-112-B- FWIV 30, 39, 48, 57 TRAIN B On On Ability to close FWIVs and ensure EFW NHY-310107 E88a, No CK6 SOLENOID POWER flows only to SGs. Evaluated as part of NHY-310844 E88/6 1-EDE-PP-112-B .

281 l-EDE-CP-249 TRAIN B AUX RELAY PANEL Energized Energized NHY-310236 GNOa, Train B Ess swgr, South Yes

<GNO> IN TRAIN B SWITCHGEAR wall 282 FW-IX-B FW-V-30 AUX RELAY De-energized Energized Energizes to close FWIV. Evaluated as NHY-310844 E88/6g No part of EDE-CP-249 283 FW-IX-3B FW-V-39 AUX RELAY De-energized Energized Energizes to close FWIV. Evaluated as NHY-310844 E88/6h No oart of EDE-CP-249 284 FW-IX-6B FW-V-48 AUX RELAY De-energized Energized Energizes to close FWIV. Evaluated as NHY-310844 E88/6j No Dart of EDE-CP-249 285 FW-IX-9B FW-V-57 AUX RELAY De-energized Energized Energizes to close FWIV. Evaluated as NHY-310844 E88/6k No part of EDE-CP-249 286 1-EDE-PP-112-B- CC-V-445 SF HX PCCW COOLING On On Ability to align Train B CC to SF HX 15B. NHY-310107 E88a, No CK12 AOV Evaluated as part of 1-EDE-PP-112-B. NHY-310895 E88/12 287 1-EDE-PP-112-B- MS-V-394 & 395 TRAIN B On On Ability to open TDEFW steam supply NHY-310107 E88a, No CK13 SOLENOID POWER AOVs. Evaluated as part of 1-EDE-PP- NHY-310841 E88/13

____________ ____________112-B.

288 1-EDE-PP-112-B- MS-V-86, MSIV A,TRAIN B On On Energize to close MSIV. Evaluated as NHY-310107 E88a, No CK14 SOLENOID POWER part of 1-EDE-PP-112-B NHY-310841 E88/14 289 1-MS-CP-185, IMSIV A AUX RELAY K103 De-energized Energized Energizes to actuate closing solenoid. NHY-310841 E88/14a No K103 Evaluated as part of MS-CP-185.

290 1-EDE-PP-112-B- MS-V-92, MSIV D,TRAIN B On On Energize to close MSIV. Evaluated as NHY-310107 E88a, No CK9 SOLENOID POWER part of 1-EDE-PP-112-B NHY-310841 E88/9 291 1-MS-CP-185, MSIV DAUX RELAY Klll De-energized Energized Energizes to actuate closing solenoid. NHY-310841 E88/9a No Klll Evaluated as part of MS-CP-185.

292 l-EDE-PP-112-B- RC-PCV-456B, PORV B, SOLENOID On On Energizes to open PORV. Required NHY-310107 E88a, No CK19 POWER WOG FLEX strategy equipment. Eval'd NHY-310882 E88/19 I_ I __ I __ _as nart of 1-EDE-PP-112-BR. __

293 1-EDE-MM-580- POV B FUSES, FU19 & FU20, AT Installed, Installed, Evaluated as part of EDE-MM-580.. NHY-310882 E88/19 No FU19 & 20 EDE-MM-580 <E4C> connected connected Revision I September 11, 2014 Page 16 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

294 1-EDE-MCC-611 VITAL SWITCHGEAR MCC 611 Energized Energized 1-NHY-310029 DG B Bldg, Engine Yes room, North side 295 PORV B 42 125V DC CONTACTOR AT MCC- De-energized De-energized Evaluated as part of 1-EDE-MCC-611 NHY-310882 E88/19 No DEVICE 611 <J3P>

296 1-EDE-SWG-11-B- VITAL 125V DC PANEL 113B Closed Closed Evaluated as part of EDE-SWG-11-B. 1-NHY-310042 No DP2 SUPPLY BREAKER 297 1-EDE-PP-113-B VITAL 125V DC PANEL 113B Energized Energized 1-NHY-310042 Train B Ess swgr, S. wall Yes 298 1-EDE-PP-113-B- CC-TV-2271-1 & 2 SOLENOID On On Ability to control Train B PCCW NHY-310107 E2Ua, No CK3 POWER temperature NHY-310895 E2U/3 299 1-EDE-PP-113-B- SI-FV-2475, 2476, 2477, & 2486, On On Energizes to open vent. Required WOG NHY-310107 E2Ua, No CK7 SI ACCUM A& C VENT POWER FLEX strategy equipment. Eval'd as NHY-310890 E2U/7 Dart of 1-EDE-PP-113-B.

300 1-EDE-PP-113-B- MS-PV-3002, ASDV B, SOLENOID On On Ability to control ASDV with M/A NHY-310107 E2Ua, No CK8 1,2, 3, & 4 POWER station or by using jog control. Eval'd NHY-310841 E2U/8 as Dart of 1-EDE-PP-113-B.

301 1-EDE-PP-113-B- MS-PV-3004, ASDV D SOLENOID On On Ability to control ASDV with M/A NHY-310107 E2Ua, No CK10 1,2, 3, & 4 POWER station or by using jog control. Eval'd NHY-310841 E2U/10 as part of 1-EDE-PP-113-B.

302 1-EDE-PP-113-B- MS-V-88, MSIV B,TRAIN B On On Energize to close MSIV. Eval'd as part NHY-310107 E2Ua, No CK12 SOLENOID POWER of 1-EDE-PP-113-B. NHY-310841 E2U/12 303 1-MS-CP-183, MSIV B AUX RELAY K103 De-energized Energized Energizes to actuate closing solenoid. NHY-310841 No K103 Evaluated as part of MS-CP-183. E2U/12a 304 1-EDE-PP-113-B- MS-V-90, MSIV C, TRAIN B On On Energize to close MSIV. Eval'd as part NHY-310107 E2Ua, No CK14 SOLENOID POWER of 1-EDE-PP-113-B. NHY-310841 E2U/14 305 1-MS-CP-183, MSIV C AUX RELAY Klll De-energized Energized Energizes to actuate closing solenoid. NHY-310841 No Klll Evaluated as part of MS-CP-183. E2U/14a 306 1-EDE-PP-113-B- MS-PV-3001, ASDV A SOLENOID 5 On On Ability to control ASDV by using jog NHY-310107 E2Ua, No CK15 & 6 POWER control. Eval'd as part of 1-EDE-PP-113- NHY-310841 E2U/1S RB, 307 1-EDE-PP-113-B- MS-PV-3003, ASDV C SOLENOID 5 On On Ability to control ASDV by using jog NHY-310107 E2Ua, No CK16 & 6 POWER control. Eval'd as part of 1-EDE-PP-113- NHY-310841 E2U /16

,B_

308 1-EDE-SWG-11-B- VITAL 125V DC PANEL 111B Closed Closed Evaluated as part of EDE-SWG-11-B. l-NHY-310042 No DN7 SUPPLY BREAKER 309 1-EDE-PP-111-B VITAL 125V DC PANEL 111B EnerRized Energized 1-NHY-310042 Train B Ess swgr, E. end Yes 310 1-EDE-PP-111-B- BUS E6 DC CONTROL POWER On On Ability to close Bus 6 SEPS feeder NHY-310107 E94a, No CK1 breaker. Eval'd as part of I-EDE-PP-111 NHY-301102 51 BUS_ _,B.

311 1-EDE-SWG BUS E6 125VDC CONTROL On On Evaluated as part on Bus 6 switchgear. NHY-310107 E94a, No

_A73 POWER LOCAL 100A BREAKER I I I NHY-301102 51 Revision I September 11, 2014 Page 17 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

312 1-EDE-SWG-11-B- EDE-I-1-B, VITAL INVERTER B DC Closed Closed Evaluated as part of EDE-SWG-11-B. 1-NHY-310042 No DN8 SUPPLY BREAKER 313 1-EDE-I-1-B VITAL INVERTER B Energized Energized Provides power to vital shutdown 1-NHY-310042 Train B Ess swgr, E. end Yes I panels & instruments of MCC-621 314 1-EDE-I-1-B-2CB VITAL INVERTER B LOCAL DC On On Evaluated as part of EDE-I-1-B. 1-NHY-310105 D26d No INPUT BREAKER 315 1-EDE-l-1-B-3CB VITAL INVERTER B LOCAL On On Evaluated as part of EDE-I-1-B. 1-NHY-310105 D26d No INVERTER SECTION DC INPUT BREAKER 316 1-EDE-l-1-B-1T VITAL INVERTER B 7.5 KVA Energized Energized Evaluated as part of EDE-I-1-B. 1-NHY-310105 D26d No INVERTER TRANSFORMER 317 1-EDE-I-1-B-2T VITAL INVERTER B 7.5 KVA Energized Energized Evaluated as part of EDE-I-1-B. 1-NHY-310105 D26d No POWER PANEL TRANSFORMER 318 1-EDE-I-1-B-4CB VITAL INVERTER B LOCAL On On Evaluated as part of EDE-I-1-B. 1-NHY-310105 D26d No INVERTER SECTION AC OUTPUT BREAKER 319 1-EDE-I-1-B-RR VITAL INVERTER B INTERNAL Various energ./ Various energ./ Relays 1CSR,4CB, CSRT, RR, ACL & 8R 1-NHY-310105 D26d No RELAYS & RESISTORS de-energ. states de-energ. states resistors must function correctly. Eval'd as part of EDE-I-1-B.

320 1-EDE-PP-1-B- VITAL POWER PANEL 1B SUPPLY On On Evaluated as part of EDE-PP-1-B 1-NHY-310105 D26e No CK15 BREAKER FROM INVERTER B 321 1-EDE-PP-1-B VITAL POWER PANEL 1B Energ ized Eegzed NHY-310105 E02a Train B Ess swgr, SE Yes 322 1-EDE-PP-1-B-CK1 CHANNEL II NI CABINET On On Operator Info only, non required safe NHY-310105 E02a No CONTROL POWER shutdown load. Evaluated as part of NHY-310943 FG1b

___FDF-PP-1-B.

323 1-EDE-PP-1-B-CK3 CHANNEL II NI CABINET On On Operator Info only, non required safe NHY-310105 EO2a No INSTRUMENT POWER shutdown load. Evaluated as part of NHY-310943 FG1b FDF-PP-1-B.

324 1-EDE-PP-1-B-CK9 CHANNEL II PROTECTION On On Required safe shutdown FLEX NHY-310105 E02a No CABINET, MM-CP-2, POWER instrumentation. Evaluated as part of NHY-310942 E02/9

__ FDE-PP-1-B 325 1-EDE-SWG-11-B- EDE-I-1-F, VITAL INVERTER F DC Closed Closed Evaluated as part of EDE-SWG-11-B. I-NHY-310042 No DNO SUPPLY BREAKER 326 1-EDE-I-1-F VITAL INVERTER F Energized Energized Provides power to vital shutdown 1-NHY-310042 Train B Ess swgr, East Yes panels & instruments end 327 1-EDE-I-1-F-A13- VITAL INVERTER F DC SUPPLY Installed, Installed, Evaluated as part of EDE-I-1-F. I-NHY-310105 DD5h No Fl FUSES A13-F1 & A13-F2 connected connected 328 1-EDE-I-1-F- VITAL INVERTER F LOCAL DC On On Evaluated as part of EDE-I-1-F. 1-NHY-310105 DD5h No CB131 INPUT BREAKER 329 1-EDE-I-1-F- VITAL INVERTER F LOCAL AC On On Evaluated as part of EDE-I-1-F. 1-NHY-310105 DD5h No CB133 OUTPUT BREAKER Revision 1 September 11, 2014 Page 18 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATrACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

330 1-EDE-I-1-F-RR VITAL INVERTER F INTERNAL Various energ./ Various energ./ Internal components must function 1-NHY-310105 DD5g No RELAYS, TRANSFORMERS, FUSES, de-energ. States de-energ. States correctly. Evaluated as part of EDE-I & h CAPACITORS, & LOGIC BOARDS F.

331 1-EDE-CP-1-F - VITAL INVERTER F STATIC Various energ./ Various energ./ Internal components must function 1-NHY-310105 DD5f Train B Ess swgr, East Yes E2B SWITCH PANEL TRANSFORMERS, de-energ. States de-energ. States correctly end, South wall RELAYS, & LOGIC BOARDS 332 1-EDE-PP-1-F - POWER PANEL iF NORMAL On On Evaluated as part of EDE-PP-1-F. 1-NHY-310105 DD5e No NORM-BKR SUPPLY BKR FROM INVERTER 333 1-EDE-PP-1-F VITAL POWER PANEL iF Energized Energized NHY-310105 EHOa Train B Ess swgr, SE Yes 334 1-EDE-PP-1-F - VITAL BOP CAB 152B, MM-CP- On On Operator Info only, non required safe 1-NHY-310952 EHO/1 No CKI 152-B, SUPPLY POWER shutdown FLEX instruments. Evaluated as Dart of EDE-PP-1-F.

335 1-EDE-PP-1-F - TRAIN B HAGEN CONTROLLER On On Operator use only, non required 1-NHY-310940 EH0/7 No CK7 POWER controls for letdown, excess letdown,

& Train B RHR. Evaluated as part of FOF-PP-1-F.

336 1-EDE-PP-1-F - VITAL BOP CAB 297B, MM-CP- On On Cabinet provides power to required 1-NHY-310952 No CK19 297-B, SUPPLY POWER safe shutdown FLEX instruments. EHO/19 Evaluated as part of EDE-PP-1-F.

337 1-EDE-PP-1-F - EDE-PP-11-F SUPPLY BREAKER On On Provides power to vital shutdown FLEX I-NHY-310105 EHOa No 338 1-EDE-PP-11-F VITAL POWER PANEL 11F Energized Energized NHY-310105 EITa Train B Ess sw r. SE Yes 339 1-EDE-PP-11-F - MSIV 86 & 92 LOGIC CABINET, On On Provides MSIV close relay K103 & Klll 1-NHY-310105 ElTa No CK7 MS-CP-185 SUPPLY BREAKER power - required. Evaluated as part of 1-FDF-PP-11-F.

340 1-MS-CP-185 MS-CP-185 TRAIN B MSIV LOGIC On On MSIVs not required per ESEL screening 1-NHY-310105 EIT/7 Train B Ess swgr, Sotuh No CABINET requirements. end of Bus 6 341 1-MS-CP-185-CB1 MS-CP-185 LOGIC CABINET, On On Evaluated as part of 1-MS-CP-185. 1-NHY-310105 EIT/7 No LOCAL BREAKER CB1 342 1-MS-CP-185-CB2 MS-CP-185 LOGIC CABINET, On On Evaluated as part of I-MS-CP-185. 1-NHY-310105 EIT/7 No LOCAL BREAKER CB2 343 1-MS-CP-185- MS-CP-185 LOGIC CABINET, 120- Energized Energized T1, T2, T3, & T4. Evaluated as part of 1- 1-NHY-310105 EIT/7 No XFMR 48V TRANSFORMERS (41 MS-CP-185.

344 i-MS-CP-185-PS MS-CP-185 48V POWER SUPPLY Installed, Installed, PSI, PS2, PS3, & PS4. Evaluated as part 1-NHY-310105 EiT/7 No MODULES (4) connected connected of i-MS-CP-185.

345 i-MS-CP-185-FU MS-CP-185 CARD FRAME FUSES Installed, Installed, Evaluated as part of 1-MS-CP-185. 1-NHY-310105 EIT/7 No F105 & F106 connected connected 346 I-MS-CP-185- MS-CP-185 CABINET LOGIC Installed, Installed, Field buffer (2), Valve control module 1-NHY-310105 EIT/7 No CARD CARDS connected connected (2), Relay driver (2). Evaluated as part of 1-MS-CP-185.

347 1-EDE-PP-11-F - MSIV 88 & 90 LOGIC CABINET, On On Provides MSIV close relay K103 & Klll 1-NHY-310105 ElTa No CK9 MS-CP-183 SUPPLY BREAKER power - required. Evaluated as part of I __-EDE-PP-11-F.

Revision 1 September 11, 2014 Page 19 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

348 1-MS-CP-183 MS-CP-183 TRAIN B MSIV LOGIC On On MSIVs not required per ESEL screening 1-NHY-310105 EIT/9 Train B Ess swgr, South No CABINET requirements. end of Bus 6 349 1-MS-CP-183-CB1 MS-CP-183 LOGIC CABINET, On On Evaluated as part of 1-MS-CP-183. 1-NHY-310105 EIT/9 No LOCAL BREAKER CB1 3S0 1-MS-CP-183-CB2 MS-CP-183 LOGIC CABINET, On On Evaluated as part of 1-MS-CP-183. 1-NHY-310105 E1T/9 No LOCAL BREAKER CB2 351 1-MS-CP-183- MS-CP-183 LOGIC CABINET, 120- Energized Energized T1, T2, T3, & T4. Evaluated as part of 1- 1-NHY-310105 EIT/9 No XFMR 48V TRANSFORMERS (4) MS-CP-183.

352 1-MS-CP-183-PS MS-CP-183 48V POWER SUPPLY Installed, Installed, PS1, PS2, PS3, & PS4. Evaluated as part 1-NHY-310105 EIT/9 No MODULES (4) connected connected of 1-MS-CP-183.

3S3 1-MS-CP-183-FU MS-CP-183 CARD FRAME FUSES Installed, Installed, Evaluated as part of 1-MS-CP-183. 1-NHY-310105 E1T/9 No F105 & F106 connected connected 3S4 1-MS-CP-183- MS-CP-183 CABINET LOGIC Installed, Installed, Field buffer (2), Valve control module I-NHY-310105 E1T/9 No CARD CARDS connected connected (2), Relay driver (2). Evaluated as part of I-MS-CP-183.

355 i-EDE-PP-11-F - RVLIS/ HELB TRAIN B CONTROL On On Required FLEX instrumentation. Eval'd 1-NHY-310105 EITa No CK17 CABINET SUPPLY BREAKER as Dart of 1-EDE-PP-11-F. NHY-310965 EIT/17 356 1-EDE-B-1-D VITAL 125VDC BATTERY D Float Charge Discharge Provides power to vital shutdown 1-NHY-310042 Train B Ess swgr, East Yes panels & loads end 357 1-EDE-CP-230 VITAL 125VDC BATTERY BUS Bolted in, Bolted in, Provides power from Battery to DC Bus 1-NHY-310042 Train B Ess swgr, East Yes 1600A SUPPLY FUSES (2) connected connected switchgear end 358 1-EDE-SWG-11-D- 125V DC BUS 11D NORMAL Closed Closed Evaluated as part of EDE-SWG-11-D. 1-NHY-310042 No DO9 BATTERY SUPPLY BREAKER 359 1-EDE-SWG-11-D VITAL 125VDC BUS D Energized Energized 1-NHY-310042 Train B Ess swgr, East Yes end 360 1-EDE-SWG-11-D- EDE-I-1-D, VITAL INVERTER D DC Closed Closed Evaluated as part of EDE-SWG-11-D. 1-NHY-310042 No DR1 SUPPLY BREAKER 361 1-EDE-I-1-D VITAL INVERTER D Energized Energized Provides power to vital shutdown 1-NHY-310042 Train B Ess swgr, East Yes oanels & instruments end 362 1-EDE-I-1-D-2CB VITAL INVERTER D LOCAL DC On On Evaluated as part of EDE-I-1-D 1-NHY-310105 D23d No INPUT BREAKER 363 1-EDE-I-1-D-3CB VITAL INVERTER D LOCAL On On Evaluated as part of EDE-I-1-D 1-NHY-310105 D23d No INVERTER SECTION DC INPUT BREAKER 364 1-EDE-I-1-D-1T VITAL INVERTER D 7.5 KVA Energized Energized Evaluated as part of EDE-I-1-D 1-NHY-310105 D23d No INVERTER TRANSFORMER 365 i-EDE-I-1-D-2T VITAL INVERTER D 7.5 KVA Energized Energized Evaluated as part of EDE-I-1-D 1-NHY-310105 D23d No POWER PANEL TRANSFORMER 366 1-EDE-I-1-D-4CB VITAL INVERTER D LOCAL On On Evaluated as part of EDE-I-1-D 1-NHY-310105 D23d No INVERTER SECTION AC OUTPUT IBREAKERIIII Revision 1 September 11, 2014 Page 20 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATIACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

367 1-EDE-I-1-D-RR VITAL INVERTER D INTERNAL Various energ./ Various energ./ Relays 1CSR,4CB, CSRT, RR, ACL & 8R 1-NHY-310105 D23d No RELAYS & RESISTORS de-energ. states de-energ. states resistors must function correctly.

Evaluated as part of EDE-I-1-D.

368 1-EDE-PP-1-D- VITAL POWER PANEL ID SUPPLY On On Evaluated as part of EDE-PP-1-D 1-NHY-310105 D23e No 369 1-EDE-PP-1-D VITAL POWER PANEL 1D Energized Energized NHY-310105 EO4a Train B Ess swgr. East of Yes 370 1-EDE-PP-1-D- CHANNEL IV NI CABINET On On Operator Info only, non required safe NHY-310105 E04a No CK1 CONTROL POWER shutdown load. Evaluated as part of NHY-310943 FG5b EDE-PP-1-D.

371 1-EDE-PP-1-D- CHANNEL IV NI CABINET On On Operator Info only, non required safe NHY-310105 ED4a No CK3 INSTRUMENT POWER shutdown load. Evaluated as part of NHY-310943 FG5b EDE-PP-1-D_,

372 1-EDE-PP-1-D- CHANNEL IV PROTECTION On On Required safe shutdown FLEX NHY-310105 E04a No CK1O CABINET, MM-CP-4, POWER instrumentation. Evaluated as part of NHY-310942 EDE-PP-1-D. EO4/IOFG3b FLEX ESEL - Required Main Control Board instrumentation 373 1-MCB MAIN CONTROL BOARD Installed Installed N/A Control Bldg, 75' elev. Yes 374 1-RC-TI-9423-A TRAIN A CORE EXIT Indicating Indicating From MM-CP-486A. Evaluated under 1- NHY-310965 F98h No THERMOCOUPLE INDICATOR MCB.

375 1-RC-TI-9424-A TRAIN A SUBCOOLING Indicating Indicating Operator use only. Not required as NHY-310965 F98h No INDICATOR FLEX instrumentation 376 1-RC-LI-1311 TRAIN A RVLIS FULL RANGE Indicating Indicating From MM-CP-486A. Evaluated under 1- NHY-310965 F98c No LEVEL MCB.

377 1-MM-CP-486-A TRAIN A RVLIS/ HELB CABINET Energized Energized Processes input signal to send to MCB NHY-310965 EIS/17a, Control Bldg, 75' elev., Yes indicators FP57442 East side 378 1-RC-XX-7315-3 TRAIN A RVLIS PLASMA DISPLAY Energized Energized Processes input signal to send to MCB NHY-310965 EIS/11a No ELECTRONICS MODULE plasma display. Evaluated under 1-MCB, 379 1-RC-XX-7315-1 TRAIN A RVLIS PLASMA DISPLAY Indicating Indicating MCB plasma display. Evaluated under NHY-310965 EIS/lia No 1-MCB.

380 1-RC-LI-459A PZR LEVEL CHAN I (PAM) Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509011 No MCB.

381 1-RC-PI-405-1 & 2 TRAIN A RCS WIDE RANGE Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509036 No PRESSURE (PAM) MCB.

382 1-RC-TI-413A RCS LOOP 1 HOT LEG WR Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509005 No TEMPERATURE (PAM) MCB.

383 1-RC-TI-423A RCS LOOP 2 HOT LEG WR Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509005 No TEMPERATURE (PAM) MCB.

384 1-RC-TI-433A RCS LOOP 3 HOT LEG WR Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509005 No TEMPERATURE (PAM) MCB.

385 1-RC-TI-443A RCS LOOP 4 HOT LEG WR Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509005 No

_TEMPERATURE (PAM) _ I MCB. I 386 1-FW-LI-501 SG A WIDE RANGE LEVEL (PAM) Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509034 No I ~ ~MCB.III Revision 1 September 11, 2014 Page 21 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic A1I-ACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

387 1-FW-LI-529 SG B NARROW RANGE LEVEL Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509017 No (PAM) MCB.

388 1-FW-PI-514A SG A PRESSURE (PAM) Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509013 No I_ MCB.

389 1-FW-PI-524A SG B PRESSURE (PAM) Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509013 No MCB.

390 1-FW-PI-534A SG C PRESSURE (PAM) Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509014 No MCB.

391 1-FW-PI-544A SG D PRESSURE (PAM) Indicating Indicating From MM-CP-1. Evaluated under 1- NHY-509014 No MCB.

392 1-MM-CP-1 CHANNEL 1 PROTECTION Energized Energized Powered from EDE-PP-1-A, ckt #9 NHY-301942 E01/9a Control Bldg, 75' elev., Yes CABINET East side 393 1-MM-CP-1-CB3 MM-CP-1 LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301942 E01/9a No POWER SUPPLY #1 BREAKER Eval'd as part of MM-CP-1.

394 1-MM-UQ-761A MM-CP-1 POWER SUPPLY #1 Energized Energized Either Power supply #1 or #2 must be NHY-301942 EO1/9a No energized. Eval'd as part of MM-CP-1.

395 1-MM-CP-1-CB4 MM-CP-1 LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301942 EO1/9a No POWER SUPPLY #2 BREAKER Eval'd as part of MM-CP-1.

396 1-MM-UQ-761B MM-CP-1 POWER SUPPLY #2 Energized Energized Either Power supply #1 or #2 must be NHY-301942 EO1/9a No energized. Eval'd as part of MM-CP-1.

397 1-RC-TI-9423-B TRAIN B CORE EXIT Indicating Indicating From MM-CP-486B. Evaluated under 1- NHY-310965 F97h No THERMOCOUPLE INDICATOR MCB.

398 1-RC-TI-9424-B TRAIN B SUBCOOLING Indicating Indicating Operator use only. Not required as NHY-310965 F97h No INDICATOR FLEX instrumentation 399 1-RC-LI-1321 TRAIN B RVLIS FULL RANGE LEVEL Indicating Indicating From MM-CP-486B. Evaluated under 1- NHY-310965 F97c No MCB.

400 1-MM-CP-486-B TRAIN B RVLIS/ HELB CABINET Energized Energized Processes input signal to send to MCB NHY-310965 EIT/17a, Control Bldg, 75' elev., Yes indicators FP57442 East side 401 1-RC-XX-7315-4 TRAIN B RVLIS PLASMA DISPLAY Indicating Indicating MCB plasma display. Evaluated under NHY-310965 E53/18 No 1-MCB.

402 1-RC-LI-460A PZR LEVEL CHAN II (PAM) Indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509011 No MCB.

403 1-RC-TI-413B RCS LOOP 1 COLD LEG WR Indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509006 No TEMPERATURE (PAM) MCB.

404 1-RC-TI-423B RCS LOOP 2 COLD LEG WR Indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509006 No TEMPERATURE (PAM) MCB.

405 1-RC-TI-433B RCS LOOP 3 COLD LEG WR Indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509006 No TEMPERATURE (PAM) MCB.

406 1-RC-TI-443B RCS LOOP 4 COLD LEG WR Indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509006 No

_ TEMPERATURE (PAM) MCB.

407 1-FW-LI-502 SG B WIDE RANGE LEVEL (PAM) Indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509034 No I I ~~MCB.III I Revision 1 September 11, 2014 Page 22 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

408 1-FW-LI-519 SG A NARROW RANGE LEVEL Indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509017 No (PAM) MCB.

409 1-FW-PI-515A SG A PRESSURE (PAM) Indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509015 No MCB.

410 1-FW-PI-525A SG B PRESSURE (PAM) indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509015 No MCB.

411 1-FW-PI-535A SG C PRESSURE (PAM) Indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509016 No MCB.

412 1-FW-PI-545A SG DPRESSURE (PAM) Indicating Indicating From MM-CP-2. Evaluated under 1- NHY-509016 No

_MCB.

413 1-MM-CP-2 CHANNEL 2 PROTECTION Energized Energized Powered from EDE-PP-1-B, ckt #9 NHY-301942 E02/9a Control Bldg, 75' elev., Yes CABINET East side 414 1-MM-CP-2-CB3 MM-CP-2 LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301942 E02/9a No POWER SUPPLY #1 BREAKER Eval'd as part of MM-CP-2.

415 1-MM-UQ-762A MM-CP-2 POWER SUPPLY #1 Energized Energized Either Power supply #1 or #2 must be NHY-301942 E02/9a No energized. Eval'd as part of MM-CP-2.

416 1-MM-CP-2-CB4 MM-CP-2 LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301942 E02/9a No POWER SUPPLY #2 BREAKER Eval'd as part of MM-CP-2.

417 1-MM-UQ-762B MM-CP-2 POWER SUPPLY #2 Energized Energized Either Power supply #1 or #2 must be NHY-301942 E02/9a No energized. Eval'd as part of MM-CP-2.

418 1-FW-LI-503 SG C WIDE RANGE LEVEL (PAM) Indicating Indicating From MM-CP-3. Evaluated under 1- NHY-509034 No MCB.

419 1-FW-LI-548 SG DNARROW RANGE LEVEL Indicating Indicating From MM-CP-3. Evaluated under 1- NHY-509019 No

_ (PAM) MCB.

420 1-MM-CP-3 CHANNEL 3 PROTECTION Energized Energized Powered from EDE-PP-1-C, ckt #9 NHY-301942 E03/9a Control Bldg, 75' elev., Yes CABINET East side 421 1-MM-CP-3-CB3 MM-CP-3 LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301942 E03/9a No POWER SUPPLY #1 BREAKER Eval'd as part of MM-CP-3.

422 1-MM-UQ-763A MM-CP-3 POWER SUPPLY #1 Energized Energized Either Power supply #1 or #2 must be NHY-301942 E03/9a No energized. Eval'd as part of MM-CP-3.

423 1-MM-CP-3-CB4 MM-CP-3 LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301942 E03/9a No POWER SUPPLY #2 BREAKER Eval'd as part of MM-CP-3.

424 1-MM-UQ-763B MM-CP-3 POWER SUPPLY #2 Energized Energized Either Power supply #1 or #2 must be NHY-301942 E03/9a No energized. Eval'd as part of MM-CP-3.

425 1-FW-LI-504 SG DWIDE RANGE LEVEL (PAM) Indicating Indicating From MM-CP-4. Evaluated under 1- NHY-509034 No MCB.

426 1-FW-LI-537 SG C NARROW RANGE LEVEL Indicating Indicating From MM-CP-4. Evaluated under 1- NHY-509020 No (PAM) MCB.

427 1-RC-PI-403-1 & 2 TRAIN B RCS WIDE RANGE Indicating Indicating From MM-CP-4. Evaluated under 1- NHY-509036 No PRESSURE (PAM) I MCB. I Revision I September 11, 2014 Page 23 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL em Equip ID Description Equipment Equipment Notes Reference Plant Location Icueo Include on Item # Normal State Desired State ESEL?

428 1-MM-CP-4 CHANNEL 4 PROTECTION Energized Energized Powered from EDE-PP-1-D, ckt#10 NHY-301942 E04/10a Control Bldg, 75' elev., Yes CABINET East side 429 1-MM-CP-4-CB3 MM-CP-4 LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301942 E04/lOa No IPOWER SUPPLY #1 BREAKER Eval'd as part of MM-CP-4.

430 1-MM-UQ-764A MM-CP-4 POWER SUPPLY #1 Energized Energized Either Power supply #1 or #2 must be NHY-301942 E04/lOa No energized. Eval'd as part of MM-CP-4.

431 1-MM-CP-4-CB4 MM-CP-4 LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301942 E04/lOa No POWER SUPPLY #2 BREAKER Eval'd as part of MM-CP-4.

432 1-MM-UQ-764B MM-CP-4 POWER SUPPLY #2 Energized Energized Either Power supply #1 or #2 must be NHY-301942 E04/lOa No energized. Eval'd as part of MM-CP-4.

433 1-FW-FI-4214-2 SG A EFW FLOW Indicating Indicating From MM-CP-297A. Evaluated under 1- NHY-310952 No MCB.

434 1-FW-FI-4234-2 SG C EFW FLOW Indicating Indicating From MM-CP-297A. Evaluated under 1- NHY-310952 No MCB.

435 1-FW-LI-4252 CST LEVEL Indicating Indicating From MM-CP-297A. Evaluated under 1- NHY-310952 No MCB.

436 1-SI-PI-2577 CONT WIDE RANGE PRESSURE Indicating Indicating From MM-CP-297A. Evaluated under 1- NHY-310952 No MCB.

437 1-MM-CP-297A TRAIN A VITAL BOP CABINET Energized Energized Powered from EDE-PP-1-E, ckt #19 NHY-301952 Control Bldg, 75' elev., Yes E__H9/19a Behind MCB. W. side 438 1-MM-CP-297A- MM-CP-297A LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301952 No CB3 POWER SUPPLY #1 BREAKER Eval'd as part of MM-CP-297A. EH9/19a 439 1-MM-UQ-5886 MM-CP-297A POWER SUPPLY #1 Energized Energized Either Power supply #1 or #2 must be NHY-301952 No energized. Eval'd as part of MM-CP- EH9/19a 297A.

440 I-MM-CP-297A- MM-CP-297A LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301952 No CB4 POWER SUPPLY #2 BREAKER Eval'd as part of MM-CP-297A. EH9/19a 441 1-MM-UQ-5887 MM-CP-297A POWER SUPPLY #2 Energized Energized Either Power supply #1 or #2 must be NHY-301952 No energized. Eval'd as part of MM-CP- EH9/19a 297A.

442 1-FW-FI-4224-2 SG B EFW FLOW Indicating Indicating From MM-CP-297B. Evaluated under 1- NHY-310952 No MCB.

443 1-FW-FI-4244-2 SG D EFW FLOW Indicating Indicating From MM-CP-297B. Evaluated under 1- NHY-310952 No MCB.

444 1-FW-LI-4257 CST LEVEL Indicating Indicating From MM-CP-297B. Evaluated under 1- NHY-310952 No I _MCB.

445 1-SI-PI-2576 CONT WIDE RANGE PRESSURE Indicating Indicating From MM-CP-297B. Evaluated under 1- NHY-310952 No I I_ MCB.

446 1-MM-CP-297B TRAIN A VITAL BOP CABINET Energized Energized Powered from EDE-PP-1-E, ckt #19 NHY-301952 Control Bldg, 75' elev., Yes E__H0/19a Behind MCB, W. side 447 1-MM-CP-297B- MM-CP-297B LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301952 No CB3

___ POWER SUPPLY #1 BREAKER Evald as Dart of MM-CP-297B. EHO/19a Revision 1 September 11, 2014 Page 24 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATrACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

448 1-MM-UQ-5847 MM-CP-297B POWER SUPPLY #1 Energized Energized Either Power supply #1 or #2 must be NHY-301952 No energized. Eval'd as part of MM-CP- EHO/19a 297B.,

449 1-MM-CP-297B- MM-CP-297B LOCAL CABINET On On Either CB3 or CB4 must be closed. NHY-301952 No CB4 POWER SUPPLY #2 BREAKER Eval'd as part of MM-CP-297B. EHO/19a 450 1-MM-UQ-5848 MM-CP-297B POWER SUPPLY #2 Energized Energized Either Power supply #1 or #2 must be NHY-301952 No energized. Eval'd as part of MM-CP- EHO/19a 297B.

451 1-CBS-LI-2380 RWST WIDE RANGE LEVEL Indicating Indicating From MM-CP-152A. OPS use only, Not NHY-310952 No required FLEX instrumentation 452 1-SW-LI-6129 COOLING TOWER LEVEL Indicating Indicating From MM-CP-152A. OPS use only, Not NHY-310952 No required FLEX instrumentation 453 1-MM-CP-152A TRAIN A VITAL BOP CABINET Energized Energized Powered from EDE-PP-1-E, ckt #1. OPS NHY-301952 EH9/la No I__use only, Not required 454 1-MM-CP-152A- MM-CP-152A LOCAL CABINET On On Either CB3 or CB4 must be closed. OPS NHY-301952 EH9/la No CB3 POWER SUPPLY #1 BREAKER use only, Not required 455 1-MM-UQ-5861 MM-CP-152A POWER SUPPLY #1 Energized Energized Either Pwr supply #1 or #2 must be NHY-301952 EH9/la No energized. Ops use only, not req'd.

456 1-MM-CP-152A- MM-CP-152A LOCAL CABINET On On Either CB3 or CB4 must be closed. OPS NHY-301952 EH9/la No CB4 POWER SUPPLY #2 BREAKER use only. Not required 457 1-MM-UQ-5861 MM-CP-152A POWER SUPPLY #2 Energized Energized NHY-301952 EH9/la No 458 1-CBS-LI-2383 RWST WIDE RANGE LEVEL Indicating Indicating From MM-CP-152B. OPS use only, Not NHY-310952 No required FLEX instrumentation 459 1-SW-LI-6139 COOLING TOWER LEVEL Indicating Indicating From MM-CP-152B. OPS use only, Not NHY-310952 No required FLEX instrumentation 460 1-SW-FI-6191 TRAIN B COOLING TOWER Indicating Indicating From MM-CP-152B. OPS use only, Not NHY-310952 No RETURN FLOW required FLEX instrumentation 461 1-MM-CP-152B TRAIN B VITAL BOP CABINET Energized Energized Powered from EDE-PP-1-F, ckt #1. OPS NHY-301952 EHO/la No use only, Not required 462 1-MM-CP-152B- MM-CP-152B LOCAL CABINET On On Either CB3 or CB4 must be closed. OPS NHY-301952 EHO/la No CB3 POWER SUPPLY #1 BREAKER use only, Not required 463 1-MM-UQ-5862 MM-CP-152B POWER SUPPLY #1 Energized Energized Either Pwr supply #1 or #2 must be NHY-301952 EHO/la No energized. Ops use only, not req'd.

464 1-MM-CP-152B- MM-CP-152B LOCAL CABINET On On Either CB3 or CB4 must be closed. OPS NHY-301952 EHO/la No CB4 POWER SUPPLY #2 BREAKER use only, Not required 465 1-MM-UQ-5863 MM-CP-152B POWER SUPPLY #2 Energized Energized Either Pwr supply #1 or #2 must be NHY-301952 EHO/la No energized. Ops use only, not req'd.

466 1-FW-LT-4252 CST LEVEL TRANSMITTER Energized Energized Required FLEX Instruments NHY-310952, Located in EFW Yes FP72183 pumphose. N. end 467 1-SI-PT-2577 CONT WIDE RANGE PRESSURE Energized Energized Required FLEX Instruments ILD-1-SI-P02577 Located in Train B elec. Yes Tuneel, -26'elev.

468 1-FW-LT-4257 CST LEVEL TRANSMITTER Energized Energized Required FLEX Instruments NHY-310952, Located in EFW Yes FP72184 pumphose. N. end Revision 1 September 11, 2014 Page 25 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

469 1-SI-PT-2576 CONT WIDE RANGE PRESSURE Energized Energized Required FLEX Instruments ILD-1-SI-P02576 Located in Train B elec. Yes Tuneel. -26'elev.

470 1-RC-PT-405 RCS WIDE RANGE PRESSURE Energized Energized Required FLEX Instruments 509036, FP55315 Located in Train B elec. Yes TRAIN A TRANSMITTER Tuneel, -26'elev.

471 1-RC-PT-403 RCS WIDE RANGE PRESSURE Energized Energized Required FLEX Instruments 509036, FP55318 Located in Train B elec. Yes TRAIN B TRANSMITTER Tuneel, -26'elev.

472 1-RC-LT-1311 RVLIS VESSEL LEVEL TRAIN A Energized Energized Required FLEX Instruments ILD-1-RC-L01311 Located in Train B elec. Yes TRANSMITTER Tuneel, -26'elev.

473 1-RC-LT-1321 RVLIS VESSEL LEVEL TRAIN B Energized Energized Required FLEX Instruments ILD-1-RC-L01321 Located in Train B elec. Yes TRANSMITTER Tuneel, -26'elev.

474 1-MM-IR-51B EAST PIPECHASE INSTRUMENT Energized Energized Houses Main Steam Pressure FP71704 Located in E. Pipechase, Yes RACK 51A Transmitters 3' elev.

475 1-FW-PT-525 SG B PRESSURE TRANSMITTER Energized Energized Located on MM-IR-51B. Eval'd under FP71704, ILD-1-FW- Located in E. Pipechase, No that item. P00525 3' elev.

476 1-FW-PT-535 SG C PRESSURE TRANSMITTER Energized Energized Located on MM-IR-51B. Eval'd under FP71704, ILD-1-FW- Located in E. Pipechase, No that item. P00535 3' elev.

477 1-MM-IR-52B WEST PIPECHASE INSTRUMENT Energized Energized Houses Main Steam Pressure FP71704 Located in W. Yes RACK 52A Transmitters Pipechase, 3' elev.

478 1-FW-PT-515 SG A PRESSURE TRANSMITTER Energized Energized Required FLEX instruments FP71704, ILD-1-FW- Located in W. No P00515 Pipechase, 3' elev.

479 1-FW-PT-545 SG D PRESSURE TRANSMITTER Energized Energized Located on MM-IR-52B. Eval'd under FP71704, ILD-1-FW- Located in W. No that item. P00545 Pioechase. 3' elev.

480 1-RC-LT-459 PZR LEVEL CHANNEL I Energized Energized Required FLEX instruments 509011, FP55316 Located inside Yes TRANSMITTER containment, 0' elev.

481 1-RC-LT-460 PZR LEVEL CHANNEL II Energized Energized Taking credit for RC-LT-460. 509011, FP55316 Located inside No TRANSMITTER containment, 0' elev.

482 1-FW-LT-501 SG A WIDE RANGE LEVEL Energized Energized Required FLEX Instruments ILD-1-FW-LO0501 Located inside Yes TRANSMITTER containment, -26' elev.

483 1-FW-LT-502 SG B WIDE RANGE LEVEL Energized Energized Required FLEX Instruments ILD-1-FW-LO0502 Located inside Yes TRANSMITTER containment, -26' elev.

484 1-FW-LT-503 SG C WIDE RANGE LEVEL Energized Energized Required FLEX Instruments ILD-1-FW-LO0503 Located inside Yes TRANSMITTER containment, -26' elev.

485 1-FW-LT-504 SG DWIDE RANGE LEVEL Energized Energized Required FLEX Instruments ILD-1-FW-LO0504 Located inside Yes TRANSMITTER containment, -26' elev.

486 1-FW-LT-519 SG A NARROW RANGE LEVEL Energized Energized Required FLEX Instruments NHY-509017, ILD Located inside Yes TRANSMITTER FW-L00519 containment, O' elev.

487 1-MM-IR-6 CONTAINMENT INSTRUMENT Energized Energized Housed SG NR level transmitters FP71679 Located inside Yes RACK 6 containment, 0' elev.

488 1-FW-LT-529 SG B NARROW RANGE LEVEL Energized Energized Located on MM-IR-6, Eval'd under that NHY-509017 Located inside No TRANSMITTER component. containment, O' elev.

489 1-FW-LT-537 SG C NARROW RANGE LEVEL Energized Energized Required FLEX Instruments NHY-509020, ILD Located inside Yes TRANSMITTER FW-LO0537 containment, 0' elev.

490 1-MM-IR-8 CONTAINMENT INSTRUMENT Energized Energized Housed SG NR level transmitters FP71683 Located inside Yes RACK 6 containment, ' elev.

Revision 1 September 11, 2014 Page 26 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATrACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location include on Item # Normal State Desired State ESEL?

491 1-FW-LT-548 SG D NARROW RANGE LEVEL Energized Energized Located on MM-IR-8, Eval'd under that NHY-509019, ILD Located inside No TRANSMITTER component. FW-L00548 containment. 0' elev.

FLEX ESEL - Miscellaneous AC Electrical 492 1-EDE-SWG-5 EMERGENCY BUS E5 Energized Energized NHY-310007 Train A Ess swgr, 21' Yes SWITCHGEAR 493 1-SEPS-BUS SEPS FEEDER BREAKER AT BUS 5 Open Open Connection point for RRC gensets, NHY-310007 Train A Ess swgr, 21' No BKR <A5A> Evaluated as part as 1-EDE-SWG-5, Bus 5 switchgear 494 1-EDE-SWG-6 EMERGENCY BUS E6 Energized Energized NHY-310008 Train B Ess swgr, 21' Yes SWITCHGEAR 495 1-SEPS-BUS SEPS FEEDER BREAKER AT BUS 6 Open Closed Evaluated as part as 1-EDE-SWG-6, Bus NHY-310102 SH. A7A No BKR <A7A> 6 switchpear 496 1-SEPS-BUS SEPS BREAKER AT BUS 6 <A7A> Reset Reset Evaluated as part as 1-EDE-SWG-6, Bus NHY-310102 SH. A7A No BKR-86 86 LOCKOOUT 6 switchgear 497 1-SEPS-BUS SEPS FEEDER BREAKER 125V DC Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6 NHY-310102 SH. No BKR-CFU CLOSING FUSES (2) connected connected A7Ab 498 1-SEPS-BUS SEPS FEEDER BREAKER 125V DC Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6 NHY-310102 SH. No BKR-TFU TRIPPING FUSES (2) connected connected A7Ab 499 1-EDE-SWG UNIT SUB 61 PRIMARY FEEDER Closed Closed Evaluated as part as 1-EDE-SWG-6, Bus NHY-310008 No A75 BREAKER AT BUS 6 <A75> 6 switchgear 500 1-EDE-US-61 UNIT SUB 61 Energized Energized NHY-310014 Train A Ess swgr, 21' Yes 501 1-EDE-X-5-C UNIT SUB 61 4160-480V Energized Energized Evaluated as part as 1-EDE-US-61 NHY-310014 No TRANSFORMER 502 1-EDE-US-61-AD2 UNIT SUB 61 SECONDARY Closed Closed Evaluated as part as 1-EDE-US-61 NHY-310014 No FEEDER BKR AT US-61 <AD2>

503 1-EDE-US-61-AD6 MCC-612 FEEDER BREAKER AT US Closed Closed Evaluated as part as 1-EDE-US-61 NHY-310014 No 61 <AD6>

504 1-EDE-MCC-612 MOTOR CONTROL CENTER 612 Energized Energized NHY-310030 Train A Ess swgr, 21' Yes 505 1-EDE-BC-1B-BKR- BATTERY CHARGER 1B BREAKER Energized De-energized Relay re-energized after EPS de- NHY-310107 sh DA1 No 42X 42X AUX RELAY energized & Bus 6 is repowered. Eval'd as nart of 1-EDE-MCC-612.

506 1-EDE-BC-1B-BKR- BATTERY CHARGER 1B BREAKER Energized De-energized Contactor re-energized after EPS de- NHY-310107 sh DA1 No 42 42 CONTACTOR energized & Bus 6 is repowered. Eval'd as Dart of 1-EDE-MCC-612.

507 1-EDE-BC-1B-BKR- BATTERY CHARGER 1B BREAKER De-energized Energized Relay de-energized after de-energizing NHY-310107 sh DAl No HR9 EPS RELAY HR9 EPS. Eval'd as part of 1-DG-CP-80.

508 1-EDE-BC-1B-BKR- BATTERY CHARGER 1B AC INPUT On On Eval'd as part of 1-EDE-BC-1B. FP32685 No CB1 BREAKER CB13 509 1-EDE-BC-1B-BKR- BATTERY CHARGER lB DC On On Eval'd as part of 1-EDE-BC-1B. FP32685 No CB2 OUTPUT BREAKER CB2 510 1-EDE-BC-1B-AC- BATTERY CHARGER 1B AC INPUT Energized Energized Eval'd as part of 1-EDE-BC-1B. FP32685 No XFMR TRANSFORMER TI I I I _

Revision 1 September 11, 2014 Page 27 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

511 1-EDE-BC-1B-AC- BATTERY CHARGER 1B AC INPUT Installed/ Installed/ Eval'd as part of 1-EDE-BC-1B. FP32685 No FU FUSES F1-F6 connected connected 512 1-EDE-BC-1B BATTERY CHARGER 1B AND Energized Energized Firing modules (AIA, B, & C), A2 Amp FP32685 Yes INTERNAL HARDWARE board, A3 current sense board, relays

_K2, K3. & W41, 513 1-SF-P-10-B-BKR SPENT FUEL COOLING PUMP lOB On On Analyzed load for SEPS as part of load NHY-310894 sh BC6 No BKR AT MCC-612 <BC6> evaluation. Evald as part of 1-EDE-MCC-61_,2, 514 1-SF-P-10-B-BKR- SF-P-lOB BKR 2A CONTROL PWR Installed/ Installed/ Eval'd as part of 1-EDE-MCC-612. NHY-310894 sh BC6 No FU FUSE AT MCC-612 <BC6> connected connected 515 1-SF-P-10-B-BKR- SF-P-lOB BKR 480-120V Energized Energized Eval'd as part of l-EDE-MCC-612. NHY-310894 sh BC6 No XFMR CONTROL TRANSFORMER AT MCC-612 <BC6>

516 1-SF-P-10-B-BKR- SF-P-lOB BKR 42 DEVICE AT MCC- Energized Energized Energized if SAF-P-1OB in service at NHY-310894 sh BC6 No 42 612 <BC6> time of ELAP event. Eval'd as part of I-FDE-MCC-612.

517 1-RC-V-323-BKR1 RX HEAD VENT ISOL. PRIMARY On On Important load used in WOG procedure NHY-310882 sh BV9 No BKR AT MCC-612 <BV9> methodology. Eval'd as part of 1-EDE-MCC-612, 518 1-RC-V-323-BKR2 RX HEAD VENT ISOL. SECONDARY On On Important load used in WOG procedure NHY-310882 sh BV9 No BKR AT MCC-612 <BV9> methodology. Eval'd as part of 1-EDE-MCC-612, 519 1-RC-V-323-BKR- RC-V-323 BKR 3A CONTROL PWR Installed/ Installed/ Eval'd as part of 1-EDE-MCC-612. NHY-310882 sh BV9 No FU FUSE AT MCC-612 <BV9> connected connected 520 1-RC-V-323-BKR- RC-V-323 BKR 480-120V Energized Energized Eval'd as part of 1-EDE-MCC-612. NHY-310882 sh BV9 No XFMR CONTROL TRANSFORMER AT MCC-612 <BV9>

521 1-RC-V-323-BKR- RC-V-323 DEV. 42-1/0 MOTOR De-energized De-energized Eval'd as part of 1-EDE-MCC-612. NHY-310882 sh BV9 No 42-1/0 STARTER AT MCC-612 <BV9>

522 1-RC-V-323-BKR- RC-V-323 DEV. 42-1/C MOTOR De-energized De-energized Eval'd as part of 1-EDE-MCC-612. NHY-310882 sh BV9 No 42-1/C STARTER AT MCC-612 <BV9>

523 1-RC-V-323-BKR- RC-V-323 DEV. 42-2 MOTOR De-energized De-energized Eval'd as part of 1-EDE-MCC-612. NHY-310882 sh BV9 No 42-2 STARTER AT MCC-612 <BV9>

524 1-CS-V-426-BKR EMERGENCY BORATION VALVE On On Important load used in WOG procedure NHY-310891 sh B94 No BKR AT MCC-612 <B94> methodology. Eval'd as part of 1-EDE-

___________ _____________________ __________ ___________MCC-612,__________ ____

525 1-CS-V-426-BKR- CS-V-426 BKR 2A CONTROL PWR Installed/ Installed/ Eval'd as part of 1-EDE-MCC-612. NHY-310891 sh B94 No FU FUSE AT MCC-612 <B94> connected connected 526 1-CS-V-426-BKR- CS-V-426 BKR 480-120V Energized Energized Eval'd as part of 1-EDE-MCC-612. NHY-310891 sh B94 No XFMR CONTROL TRANSFORMER AT MCC-612 <194>

527 1-CS-V-426-BKR- CS-V-426 DEV. 42/0 MOTOR De-energized De-energized Eval'd as part of 1-EDE-MCC-612. NHY-310891 sh B94 No 42/0 STARTER AT MCC-612 <B94> I I I I I Revision 1 September 11, 2014 Page 28 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Eq De p Equipment Equipment Notes Reference Plant Location Include on Item # quip ID escription Normal State Desired State NotesReference PlantLocation ESEL?

528 1-CS-V-426-BKR- CS-V-426 DEV. 42/C MOTOR De-energized De-energized Eval'd as part of 1-EDE-MCC-612. NHY-310891 sh B94 No

42/C STARTER AT MCC-612 <B94>

529 1-CS-P-3B-BKR BORIC ACID TRANSFER PUMP 3B On On Important load used in WOG procedure NHY-310891 sh B89 No BKR AT MCC-612 <B89> methodology. Evard as part of 1-EDE-MCC-6*2, 530 1-CS-P-3B-BKR-FU CS-P-3B BKR 2A CONTROL PWR Installed/ Installed/ Eval'd as part of 1-EDE-MCC-612. NHY-310891 sh B89 No FUSE AT MCC-612 <B89> connected connected 531 1-CS-P-3B-BKR- CS-P-3B BKR 480-120V CONTROL Energized Energized Eval'd as part of 1-EDE-MCC-612. NHY-310891 sh B89 No XFMR TRANSFORMER AT MCC-612

<189>

532 1-CS-P-3B-BKR-42 CS-P-3B DEV. 42 MOTOR De-energized De-energized Evald as part of 1-EDE-MCC-612. NHY-310891 sh B89 No STARTER AT MCC-612 <B89>

533 1-CS-P-3-B BORIC ACID TRANSER PUMP B Off Off NHY-805062 PAB, 25. elev., Boric Yes Acid tank room 534 1-CS-P-3B-BKR- CS-P-3B HIGH TEMP THERMAL De-energized De-energized Contacts open on pump high NHY-310891 sh B89 No THERM TECTOR CONTACT AT CS-P-3B temperature. Evaluated as part of 1-CS-P-3-B 535 1-FAH-FN-11B- FSB VENTILATION FAN BKR AT On On Analyzed load for SEPS as part of load NHY-310929 sh BL2 No BKR MCC-612 <BL2> evaluation. Eval'd as part of 1-EDE-MCC-612,.

536 1-FAH-FN-11B- FAH-FN-11B BKR 2A CONTROL Installed/ Installed/ Eval'd as part of 1-EDE-MCC-612. NHY-310929 sh BL2 No BKR-FU PWR FUSE AT MCC-612 <BL2> connected connected 537 1-FAH-FN-11B- FAH-FN-11B BKR 480-120V Energized Energized Evald as part of 1-EDE-MCC-612. NHY-310929 sh BL2 No BKR-XFMR CONTROL TRANSFORMER AT MCC-612 < >R1 __>

538 1-FAH-FN-11B- FAH-FN-11B BREAKER 42X AUX Energized De-energized Re-energized after Bus 6 re-power & NHY-310929 sh BL2 No BKR-42X RELAY placing fan switch in start. Evald as Iart of 1-EDE-MCC-612 .

539 1-FAH-FN-11B- FAH-FN-11B BREAKER 42 Energized De-energized Re-energized after Bus 6 re-power & NHY-310929 sh BL2 No BKR-42 CONTACTOR placing fan switch in start. Eval'd as part of 1-EDE-MCC-612.

540 1-FAH-DP-12B FAH-FN-11B OUTLET DAMPER De-energized De-energized Contact de-energized when damper NHY-310929 sh BL2 Fuel Storage bldg, 64' Yes CONTACT 4NC not full closed from relay R1 elev.. at Filter 69 541 1-FAH-FN-11B- FAH-FN-11B BREAKER AUX RELAY De-energized De-energized Re-energized after Bus 6 re-power & NHY-310929 sh BL2 No BKR-R1 R1 placing fan switch in start. Eval'd as

_art of 1-FDE-MCC-612 542 1-FAH-FN-11B- FAH-FN-11B BREAKER EPS RMO De-energized De-energized De-energized after EPS is de-energized NHY-310929 sh BL2 No BKR-RMO CONTACT & Bus 6 re-power. Eval'd as part of 1-I _ I_ I_ I_ IDG-CP-8I0 ,

543 1-CAH-FN-3B- CAH-FN-3B PRIMARY BKR AT On On Analyzed load for SEPS as part of load NHY-310931 sh BC3 No BKR1 MCC-612 <BC3> evaluation. Eval'd as part of 1-EDE-I_ __I I_ MCC-612, I I Revision 1 September 11, 2014 Page 29 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic A'TACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item Equip iD Description Normal State Desired State ESEL?

544 1-CAH-FN-3B- CAH-FN-3B SECONDARY BKR AT On On Analyzed load for SEPS as part of load NHY-310931 sh BC3 No BKR2 MCC-612 <BC3> evaluation. Eval'd as part of 1-EDE-CAH-FN-3B___KR_2A__ONTROLMCC-612.

545 1-CAH-FN-3B-BKR CAH-FN-3B BKR 2A CONTROL Installed/ Installed/ Eval'd as part of 1-EDE-MCC-612. NHY-310931 sh BC3 No FU PWR FUSE AT MCC-612 <BC3> connected connected 546 1-CAH-FN-3B-BKR. CAH-FN-3B BKR 480-120V Energized Energized Eval'd as part of 1-EDE-MCC-612. NHY-310931 sh BC3 No XFMR CONTROL TRANSFORMER AT MCC-612 <BC_>

547 1-CAH-FN-3B-BKR. CAH-FN-3B BREAKER 42X AUX De-energized De-energized Energized after Bus 6 re-power & NHY-310931 sh BC3 No 42X RELAY placing fan switch in RUN. Eval'd as

_art of 1-EDE-MCC-612 548 1-CAH-FN-3B-BKR. CAH-FN-3B BREAKER 42 MOTOR De-energized De-energized Energized after Bus 6 re-power & NHY-310931 sh BC3 No 42 STARTER placing fan switch in RUN. Eval'd as nart of 1-EDE-MCC-612 549 1-CAH-FN-3B-BKR. CAH-FN-3B BREAKER AUX RELAY De-energized De-energized Energized in FILTER mode, de- NHY-310931 sh BC3 No RI RI AT MCC-612 energized in RECIRC mode. Eval'd as

_art of 1-EDE-MCC-612 550 1-CAH-FY-34B CAH-DP-34B SOLENOID POWER De-energized De-energized Energized in FILTER mode, de- NHY-310931 sh BC3 No AT MCC-612 <BC3> energized in RECIRC mode. Eval'd as 551 1-CAH-FY-34D CAH-DP-34D SOLENOID POWER De-energized De-energized Energized in FILTER mode, de- NHY-310931 sh BC3 No AT MCC-612 <BC3> energized in RECIRC mode. Eval'd as part of 1-EDE-MCC-612 552 1-EAH-FN-31B- ENCLOSURE RETURN FAN 31B On On Analyzed load for SEPS as part of load NHY-310932 sh BC1 No BKR BKR AT MCC-612 <BC1> evaluation. Eval'd as part of 1-EDE-MCC-612.

553 1-EAH-FN-31B- EAH-FN-31B BKR 2A CONTROL Installed/ Installed/ Eval'd as part of 1-EDE-MCC-612. NHY-310932 sh BC1 No BKR-FU PWR FUSE AT MCC-612 <BC1> connected connected 554 I-EAH-FN-31B- EAH-FN-31B BKR 480-120V Energized Energized Eval'd as part of 1-EDE-MCC-612. NHY-310932 sh BC1 No BKR-XFMR CONTROL TRANSFORMER AT MCC-612 <BC1>

555 1-EAH-FN-31B- EAH-FN-31B BREAKER 42X AUX Energized Energized Energized after Bus 6 re-power & EAH- NHY-310932 sh BC1 No BKR-42X RELAY FN-5B Start. Eval'd as part of 1-EDE-I______________________ MCC-612_____

556 1-EAH-FN-31B- EAH-FN-31B BREAKER 42 MOTOR Energized Energized Energized after Bus 6 re-power & EAH- NHY-310932 sh BC1 No BKR-42 STARTER FN-5B Start. Eval'd as part of 1-EDE-MCC-612 557 1-EAH-FN-5B-52 EAH-FN-5B BKR 52 CLOSED Energized Energized Contact closed after Bus 6 re-power & NHY-310932 sh BC1 No CONTACT AT US-62 <AF9> EAH-FN-5B breaker closure. Eval'd as part of 1-EDE-US-62 558 1-EAH-FN-180B- ENCLOSURE RETURN FAN 180B On On Analyzed load for SEPS as part of load NHY-310932 sh BC1 No BKR BKR AT MCC-612 <BSI> evaluation. Eval'd as part of 1-EDE-MCC-612.

559 1-EAH-FN-180B- EAH-FN-180B BKR 2A CONTROL Installed/ Installed/ Eval'd as part of 1-EDE-MCC-612. NHY-310932 sh BC1 No BKR-FU PWR FUSE AT MCC-612 <BS1> connected connected Revision 1 September 11, 2014 Page 30 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

560 1-EAH-FN-180B- EAH-FN-180B BKR 480-120V Energized Energized Eval'd as part of 1-EDE-MCC-612. NHY-310932 sh BC1 No BKR-XFMR CONTROL TRANSFORMER AT MCC-612 <BS1>

561 1-EAH-FN-1gOB- EAH-FN-180B BREAKER 42 Energized Energized Eval'd as part of 1-EDE-MCC-612. NHY-310932 sh BC1 No BKR-42 MOTOR STARTER 562 1-EAH-FN-180B- EAH-FN-180B BREAKER AUX Energized Energized Energized after Bus 6 re-power & NHY-310932 sh BC1 No BKR-RI RELAY RI AT MCC-612 Enclosure low pressure. Eval'd as part of 1-EDE-MCC-612.

563 1-EAH-PDIS-5028 ENCLOSURE DIFFERENTIAL De-energized Energized Energized contact after containment NHY-310932 sh BC1 No PRESSURE SWITCH enclosure pressure low. Eval'd as part of 1-EDE-MCC-612.

564 I-EDE-MCC-612- I1-EDE-MCC-612 DISTR. PANEL Energized Energized Eval'd as part of I-EDE-MCC-612. NHY-310030 No BKR-E48 XFMR FEED BKR <E48>

565 1-EDE-MCC-612- DISTR. PANEL 480-120/240V Energized Energized Eval'd as part of 1-EDE-MCC-612. NHY-310030 No E48-XFMR TRANSFORMER TO <E48>

566 1-EDE-MCC-612- FAH CONTROL POWER FROM On On Eval'd as part of 1-EDE-MCC-612. NHY-310929 sh No CK2 PANEL <E48>. CKT #2 E48/2 567 1-FAH-FY-5443-2 FAH-DP-13B FUEL HANDLING De-energized/ Energized/ open Energized after starting FAH-FN-11B in NHY-310929 sh Con't enclosure, 32' Yes MODE SOLENOID POWER closed fuel handling mode E48/2 elev.. above entry 568 1-EDE-US-61-AX9 MCC-615 FEEDER BREAKER AT US. Closed Closed Eval'd as part of 1-EDE-US-61. NHY-310014 No 61 <AX9>

569 1-EDE-MCC-615 MOTOR CONTROL CENTER 615 Energized Energized NHY-310067 Train A Ess swgr, 21' Yes 570 1-FW-FV-4214B- 1-FW-FV-4214B, SG A EFW On On Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B3Z No BKR-B3Z THROTTLE VALVE POWER 571 1-FW-FV-4214B- FW-FV-4214B BKR 2A CONTROL Installed/ Installed/ Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B3Z No BKR-FU PWR FUSE AT MCC-615 <B3Z> connected connected 572 1-FW-FV-4214B- FW-FV-4214B BKR 480-120V Energized Energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B3Z No BKR-XFMR CONTROL TRANSFORMER AT MCC-615 <B3Z>

573 1-FW-FV-4214B- FW-FV-4214B BKR OPEN MOTOR De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B3Z No BKR-42/O STARTER 574 1-FW-FV-4214B- FW-FV-4214B BKR CLOSED De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B3Z No BKR-42/C MOTOR STARTER 575 1-MM-CP-914B MM-CP-914B AUX RELAY PANEL Energized Energized NHY-310844 sh. B3Z Control Bldg, 50' elev., Yes I _Train B Mech room 576 1-MM-CP-914B- FW-FV-4214B BKR AUX RELAY De-energized De-energized Energized when valve is throttled NHY-310844 sh. B3Z No MSO-1 MSO-1 AT MM-CP-914B closed. Eval'd as part of 1-MM-CP-I_ 914B.

577 1-FW-FV-4224B- 1-FW-FV-4224B, SG B EFW On On Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4A No BKR-B4A THROTTLE VALVE POWER I Revision 1 September 11, 2014 Page 31 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

578 1-FW-FV-4224B- FW-FV-4224B BKR 2A CONTROL Installed/ Installed/ Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4A No BKR-FU PWR FUSE AT MCC-615 <B4A> connected connected 579 1-FW-FV-4224B- FW-FV-4224B BKR 480-120V Energized Energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4A No BKR-XFMR CONTROL TRANSFORMER AT MCC-615 <B4A>

580 1-FW-FV-4224B- FW-FV-4224B BKR OPEN MOTOR De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4A No BKR-42/O STARTER 581 1-FW-FV-4224B- FW-FV-4224B BKR CLOSED De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4A No

__ BKR-42/C MOTOR STARTER 582 1-MM-CP-914B- FW-FV-4224B BKR AUX RELAY De-energized De-energized Energized when valve is throttled NHY-310844 sh. B4A No MSO-2 MSO-2 AT MM-CP-914B closed. Eval'd as part of 1-MM-CP-583 1-FW-FV-4234B- 1-FW-FV-4234B, SG C EFW On On Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4B No BKR-B4B THROTTLE VALVE POWER 584 1-FW-FV-4234B- FW-FV-4234B BKR 2A CONTROL Installed/ Installed/ Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4B No BKR-FU PWR FUSE AT MCC-615 <B4B> connected connected 585 1-FW-FV-4234B- FW-FV-4234B BKR 480-120V Energized Energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4B No BKR-XFMR CONTROL TRANSFORMER AT MCC-615 <B41>

586 1-FW-FV-4234B- FW-FV-4234B BKR OPEN MOTOR De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4B No BKR-42/O STARTER 587 1-FW-FV-4234B- FW-FV-4234B BKR CLOSED De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4B No BKR-42/C MOTOR STARTER 588 1-MM-CP-914B- FW-FV-4234B BKR AUX RELAY De-energized De-energized Energized when valve is throttled NHY-310844 sh. B4B No MSO-3 MSO-3 AT MM-CP-914B closed. Eval'd as part of 1-MM-CP-914B.

589 1-FW-FV-4244B- 1-FW-FV-4244B, SG D EFW On On Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4C No BKR-B4C THROTTLE VALVE POWER 590 1-FW-FV-4244B- FW-FV-4244B BKR 2A CONTROL Installed/ installed/ Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4C No BKR-FU PWR FUSE AT MCC-615 <B4C> connected connected 591 1-FW-FV-4244B- FW-FV-4244B BKR 480-120V Energized Energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4C No BKR-XFMR CONTROL TRANSFORMER AT MCC-615 <B4C>

592 1-FW-FV-4244B- FW-FV-4244B BKR OPEN MOTOR De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4C No BKR-42/O STARTER 593 1-FW-FV-4244B- FW-FV-4244B BKR CLOSED De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh. B4C No BKR-42/C MOTOR STARTER 594 1-MM-CP-914B- FW-FV-4244B BKR AUX RELAY De-energized De-energized Energized when valve is throttled NHY-310844 sh. B4C No MSO-4 MSO-4 AT MM-CP-914B closed. Eval'd as part of 1-MM-CP-914B.

Revision 1 September 11, 2014 Page 32 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item # Equip ID Description Normal State Desired State ESEL?

595 1-CC-P-322B- CC-P-322B PRIMARY BKR AT MCC. On On Analyzed load for SEPS as part of load NHY-310895 sh B4Q No BKR1 615 <B4Q> evaluation. Eval'd as part of 1-EDE-MCC-615.

596 1-CC-P-322B- CC-P-322B SECONDARY BKR AT On On Analyzed load for SEPS as part of load NHY-310895 sh B4Q No BKR2 MCC-615 <B4Q> evaluation. Eval'd as part of 1-EDE-I MCC-61*5.

597 1-CC-P-322B-BKR- CC-P-322B BKR 2A CONTROL Installed/ Installed/ Eval'd as part of 1-EDE-MCC-615. NHY-310895 sh B4Q No FU PWR FUSE AT MCC-615 <B4Q> connected connected 598 1-CC-P-322B-BKR- CC-P-322B BKR 480-120V Energized Energized Eval'd as part of 1-EDE-MCC-615. NHY-310895 sh B4Q No XFMR CONTROL TRANSFORMER AT MCC-615 <IB40>

599 1-CC-P-322B-BKR- CC-P-322B BREAKER 42X AUX De-energized De-energized Energized after Bus 6 re-power & NHY-310895 sh B4Q No 42X RELAY placing fan switch in RUN. Eval'd as nart of l-EDE-MCC-615 600 1-CC-P-322B-BKR- CC-P-322B BREAKER 42 MOTOR De-energized De-energized Energized after Bus 6 re-power if NHY-310895 sh B4Q No 42 STARTER control switch is in RUN 601 1-EDE-MCC-615- 1-EDE-MCC-615 DISTR. PANEL Energized Energized Eval'd as part of 1-EDE-MCC-615. NHY-310067 No BKR-E3F XFMR FEED BKR <E3F>

602 1-EDE-MCC-615- DISTR. PANEL 480-120/240V Energized Energized Eval'd as part of 1-EDE-MCC-615. NHY-310067 No SE3F-XFMR TRANSFORMER TO <E3F>

603 1-EDE-MCC-615- EFW CONTROL POWER FROM On On Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh No CK1 PANEL <E3F>. CKT #1 E3F/1 604 1-FW-FV-4214-4 FW-FV-4214B HIGH FLOW De-energized/ De-energized/ Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh No CONTACTS IN FLOW SWITCH Open Open E3F/le 605 I-MM-CP-914B- FW-FV-4214B HIGH FLOW AUX De-energized De-energized Eval'd as part of 1-MM-CP-914B. NHY-310844 sh No

_ RIB RELAY RIB E3F/1e 606 I-FW-FV-4214B- FW-FV-4214B HIGH FLOW TIME De-energized De-energized Eval'd as part of I-EDE-MCC-615. NHY-310844 sh No 62-1 DELAY PICKUP RELAY 62-1 E3F/la 607 I-FW-FV-4214B- FW-FV-4214B HIGH FLOW AUX De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh No Ri RELAY Ri E3F/1a 608 1-FW-FV-4224-2 FW-FV-4224B HIGH FLOW De-energized/ De-energized/ Eval'd as part of I-EDE-MCC-615. NHY-310844 sh No CONTACTS IN FLOW SWITCH Open Open E3F/ie 609 I-MM-CP-914B- FW-FV-4224B HIGH FLOW AUX De-energized De-energized Eval'd as part of 1-MM-CP-914B. NHY-310844 sh No R2B RELAY R2B E3F/1e 610 I-FW-FV-4224B- FW-FV-4224B HIGH FLOW TIME De-energized De-energized Eval'd as part of I-EDE-MCC-615. NHY-310844 sh No 62-2 DELAY PICKUP RELAY 62-2 E3F/la 611 I-FW-FV-4224B- FW-FV-4224B HIGH FLOW AUX De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh No R2 RELAY R2 E3F/1a 612 I-FW-FV-4234-4 FW-FV-4234B HIGH FLOW De-energized/ De-energized/ Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh No CONTACTS IN FLOW SWITCH Open Open E3F/ie 613 1-MM-CP-914B- FW-FV-4234B HIGH FLOW AUX De-energized De-energized Eval'd as part of 1-MM-CP-914B. NHY-310844 sh No

_R3B RELAY R3B I I I E3F/le Revision 1 September 11, 2014 Page 33 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item# Normal State Desired State ESEL?

614 1-FW-FV-4234B- FW-FV-4234B HIGH FLOW TIME De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh No 62-3 DELAY PICKUP RELAY 62-3 E3F/la 615 1-FW-FV-4234B- FW-FV-4234B HIGH FLOW AUX De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh No

_R3 RELAY R3 E3F/la 616 1-FW-FV-4244-2 FW-FV-4244B HIGH FLOW De-energized/ De-energized/ Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh No CONTACTS IN FLOW SWITCH Open Open E3F/le 617 1-MM-CP-914B- FW-FV-4244B HIGH FLOW AUX De-energized De-energized Eval'd as part of 1-MM-CP-914B. NHY-310844 sh No

_ R4B RELAY R4B E3F/le 618 1-FW-FV-4244B- FW-FV-4244B HIGH FLOW TIME De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh No 62-4 DELAY PICKUP RELAY 62-4 E3F/la 619 1-FW-FV-4244B- FW-FV-4244B HIGH FLOW AUX De-energized De-energized Eval'd as part of 1-EDE-MCC-615. NHY-310844 sh No R4 RELAY R4 E3F/la 620 1-EDE-SWG UNIT SUB 62 PRIMARY FEEDER Closed Closed Evaluated as part as 1-EDE-SWG-6, Bus NHY-310008 No

_ A83 BREAKER AT BUS 6 <A83> 6 switchgear 621 1-EDE-SWG UNIT SUB 62 BREAKER AT BUS 6 Reset Reset Evaluated as part as 1-EDE-SWG-6, Bus NHY-310008 No A83-86 <A83> 86 LOCKOOUT 6 switchgear 622 1-EDE-US-62 UNIT SUB 62 Energized Energized NHY-310014 Train B Ess swgr, 21' Yes 623 1-EDE-X-5-D UNTI SUB 62 4160-480V Energized Energized Evaluated as part as 1-EDE-US-62. NHY-310014 No TRANSFORMER 624 1-EDE-US-62-AE2 UNIT SUB 62 SECONDARY Closed Closed Evaluated as part as 1-EDE-US-62. NHY-310014 No FEEDER BKR AT US-62 <AE2>

625 1-EDE-US-62-AE8 MCC-621 FEEDER BREAKER AT US Closed Closed Evaluated as part as 1-EDE-US-62. NHY-310014 No 62 <AE8>

626 1-EDE-MCC-621 MOTOR CONTROL CENTER 621 Energized Energized NHY-310033 Train B Ess swgr, 21' Yes 627 1-EDE-BC-1D-BKR BATTERY CHARGER ID BREAKER On On Analyzed load for SEPS as part of load NHY-310107 sh DB2 No AT MCC-621 <DB2> evaluation. Evaluated as part as 1-EDE-

_______ v1~~~~CC-621. __________

628 1-EDE-BC-1D-BKR- BATTERY CHARGER 1D BREAKER Energized De-energized Relay re-energized after EPS de- NHY-310107 sh DB2 No 42X 42X AUX RELAY energized & Bus 6 is repowered. Eval'd as part of 1-EDE-MCC-621.

629 1-EDE-BC-1D-BKR- BATTERY CHARGER 10 BREAKER Energized De-energized Contactor re-energized after EPS de- NHY-310107 sh DB2 No 42 42 CONTACTOR energized & Bus 6 is repowered. Eval'd as part of 1-EDE-MCC-621.

630 1-EDE-BC-1D-BKR- BATTERY CHARGER 1D BREAKER De-energized Energized Relay de-energized after de-energizing NHY-310107 sh DB2 No HR9 EPS RELAY HR9 EPS. Eval'd as part of 1-DG-CP-80.

631 1-EDE-BC-1D-BKR- BATTERY CHARGER 10 AC INPUT On On Evaluated as part as 1-EDE-BC-1D FP32685 No CB1 BREAKER CB13 632 1-EDE-BC-1D-BKR- BATTERY CHARGER ID DC On On Evaluated as part as 1-EDE-BC-1D FP32685 No CB2 OUTPUT BREAKER CB2 633 1-EDE-BC-1D-AC- BATTERY CHARGER 1D AC INPUT Energized Energized Evaluated as part as 1-EDE-BC-1D FP32685 No XFMR TRANSFORMER TI I I I I I Revision I September 11, 2014 Page 34 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State NotesReference PlantLocation ESEL?

634 1-EDE-BC-1D-AC- BATTERY CHARGER 1D AC INPUT Installed/ Installed/ Evaluated as part as 1-EDE-BC-1D FP32685 No FU FUSES F1-F6 connected connected 635 1-EDE-BC-1D BATTERY CHARGER ID AND Energized Energized Firing modules (AIA, B, & C), A2 Amp FP32685 Yes I INTERNAL HARDWARE board, A3 current sense board. relays 636 1-CBA-FN-32-BKR TRAIN ASWGR SUPPLY FAN 32 On On Analyzed load for SEPS as part of load NHY-310926 sh BL3 No BKR AT MCC-621 <BL3> evaluation 637 1-CBA-FN-32-BKR- 1-CBA-FN-32 BKR 2A CONTROL Installed/ Installed/ Evaluated as part as 1-EDE-MCC-621 NHY-310926 sh BL3 No FU PWR FUSE AT MCC-621 <BL3> connected connected 638 1-CBA-FN-32-BKR- 1-CBA-FN-32 BKR 480-120V Energized Energized Evaluated as part as 1-EDE-MCC-621 NHY-310926 sh BL3 No XFMR CONTROL TRANSFORMER AT MCC-621 <BL3>

639 1-CBA-FN-32-BKR- 1-CBA-FN-32 BREAKER 42X AUX Energized Energized Energized after de-energizing EPS & NHY-310926 sh BL3 No 42X RELAY placing switch in START. Evaluated as nart as 1-EDE-MCC-621.

640 1-CBA-FN-32-BKR- 1-CBA-FN-32 BREAKER 42 Energized Energized Energized after de-energizing EPS & NHY-310926 sh BL3 No 42 MOTOR STARTER placing switch in START. Evaluated as

_art as 1-EDE-MCC-621, 641 1-CBA-FN-32-BKR- EPS AUX RELAY RMO IN DG-CP-80 De-energized Energized De-energized after de-energizing EPS. NHY-310926 sh BL3 No RMO Eval'd as part of 1-DG-CP-80.

642 1-CBA-FN-33-BKR TRAIN A SWGR RETURN FAN 33 On On Analyzed load for SEPS as part of load NHY-310926 sh BL4 No BKR AT MCC-621 <BL4> evaluation 643 1-CBA-FN-33-BKR- 1-CBA-FN-33 BKR 2A CONTROL Installed/ Installed/ Evaluated as part as 1-EDE-MCC-621 NHY-310926 sh BL4 No FU PWR FUSE AT MCC-621 <BL4> connected connected 644 1-CBA-FN-33-BKR- 1-CBA-FN-32 BKR 480-120V Energized Energized Evaluated as part as 1-EDE-MCC-621 NHY-310926 sh BL4 No XFMR CONTROL TRANSFORMER AT MCC-621 <BL4>

645 1-CBA-FN-33-BKR- 1-CBA-FN-33 BREAKER 42X AUX Energized Energized Energized after de-energizing EPS & NHY-310926 sh BL4 No 42X RELAY _lacing switch in START. Evaluated as 646 1-CBA-FN-33-BKR- 1-CBA-FN-33 BREAKER 42 Energized Energized Energized after de-energizing EPS & NHY-310926 sh BL4 No 42 MOTOR STARTER _lacine switch in START 647 1-CBA-FN-33-BKR- EPS AUX RELAY RMO IN DG-CP-80 De-energized Energized De-energized after de-energizing EPS. NHY-310926 sh BL4 No RMO Eval'd as part of 1-DG-CP-80.

648 1-CBA-FN-21B- SWGR BATTERY EXAUST FAN 21B On On Analyzed load for SEPS as part of load NHY-310926 sh BL5 No BKR BKR AT MCC-621 <BL5> evaluation. Evaluated as part as 1-EDE-MCC-621 649 1-CBA-FN-21B- 1-CBA-FN-21B BKR 2A CONTROL installed/ Installed/ Evaluated as part as 1-EDE-MCC-621 NHY-310926 sh BL5 No BKR-FU PWR FUSE AT MCC-621 <BL5> connected connected 650 1-CBA-FN-21B- 1-CBA-FN-21B BKR 480-120V Energized Energized Evaluated as part as 1-EDE-MCC-621 NHY-310926 sh BL5 No BKR-XFMR CONTROL TRANSFORMER AT M C C-6 2 1 < RL ;> _ E e i d f r u 6_ _ _ _ _ 1_ _ 2_

_ _ __ _ __&_NY _N 651 1-CBA-FN-21B- 1-CBA-FN-21B BREAKER 42 Energized Energized Energized after Bus 6 re-power & CBA- NHY-31D926 sh BL5 No BKR-42 MOTOR STARTER DP-21B not full closed. Eval'd as part as

__1-EDE-MCC-621 Revision 1 September 11, 2014 Page 35 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL em Equip ID Description Equipment Equipment Icueo Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

652 1-CBA-DP-21B 1-CBA-DP-21B LIMIT SWITCH Contact closed Contact closed Energized after Bus 6 re-power & CBA- NHY-310926 sh BL5 Control Bldg, 50' elev., Yes CONTACT INO DP-21B not full closed Train B Mech room 653 1-CBA-FN-16B- CONTROL ROOM EMERG On On Analyzed load for SEPS as part of load NHY-310926 sh D36 No BKR CLEANUP FAN 16B BKR AT MCC- evaluation. Evaluated as part as 1-EDE-621 <D36> MCC-621 654 1-CBA-FN-16B- 1-CBA-FN-16B BKR 2A CONTROL Installed/ Installed/ Evaluated as part as 1-EDE-MCC-621 NHY-310926 sh D36 No BKR-FU PWR FUSE AT MCC-621 <D36> connected connected 655 1-CBA-FN-16B- 1-CBA-FN-16B BKR 480-120V Energized Energized Evaluated as part as 1-EDE-MCC-621 NHY-310926 sh D36 No BKR-XFMR CONTROL TRANSFORMER AT MCC-621 <D36>

656 1-CBA-FN-16B- 1-CBA-FN-16B BREAKER 42 Energized Energized Energized after Bus 6 re-power & CBA- NHY-310926 sh D36 No BKR-42 MOTOR STARTER DP-21B not full closed. Eval'd as part as 1-FDF-MCC-621 657 1-CBA-DP-27B 1-CBA-DP-27B LIMIT SWITCH Contact closed Contact closed Energized after Bus 6 re-power & CBA- NHY-310926 sh D36 No CONTACT 4NC DP-27B not full closed 658 1-CBA-P-434B- TRAIN B CONTROL ROOM AC On On Analyzed load for SEPS as part of load NHY-310926 sh B6H No BKR CHILLER PUMP 434B BKR AT MCC evaluation. Evaluated as part as 1-EDE-621 <B6H> MCC-621 659 1-CBA-P-434B- 1-CBA-P-434B BKR 2A CONTROL Installed/ Installed/ Evaluated as part as 1-EDE-MCC-621 NHY-310926 sh B6H No BKR-FU PWR FUSE AT MCC-621 <D36> connected connected 660 1-CBA-P-434B- 1-CBA-P-434B BKR 480-120V Energized Energized Evaluated as part as 1-EDE-MCC-621 NHY-310926 sh B6H No BKR-XFMR CONTROL TRANSFORMER AT MCC-621 <D36>

661 1-CBA-P-434B- 1-CBA-P-434B BREAKER 42 De-energized Energized Energized after start command from NHY-310926 sh B6H No BKR-42 MOTOR STARTER CBA-AC-178. Evaluated as part as 1-FDF-MCC-621 662 1-CBA-E-230-B TRAIN B SAFETY RELATED CBA Energized Energized NHY-202069 DG Bldg, 50' elev., Train Yes CHILLER UNIT E-230B B Fan room 663 1-CBA-E-230B- TRAIN B AC CHILLER PANEL Energized Energized Evaluated as part of 1-CBA-E-230-B NHY-310926 sh B6H No HW5 <HW5> FP 62415 664 1-CBA-E-230B- 1-CBA-P-434B START SIGNAL AUX De-energized Energized Energized per start command from CBA- NHY-310926 sh B6H No 6K13-1 RELAY 6K13-1 E-230B controls. Eval'd as part of 1- FP 62415

_RA-F-2 :0-R_,

665 1-CBA-CP-178- TRAIN B CONTROL ROOM AC BKR Closed Closed Analyzed load for SEPS as part of load NHY-310926 sh AE4 No BKR AT US-62 <AE4> evaluation. Evaluated as part as 1-EDE-I_ I I US-62 666 1-CBA-CP-178- CBA-CP-178 BKR 15A TRIPPING Installed/ Installed/ Evaluated as part as 1-EDE-US-62 NHY-310926 sh AE4 No BKR-TFU FUSES (21 AT US-62 <AE4> connected connected 667 1-CBA-CP-178- CBA-CP-178 BKR 15A CLOSING Installed/ Installed/ Evaluated as part as 1-EDE-US-62 NHY-310926 sh AE4 No BKR-CFU FUSES (2) AT US-62 <AE4> connected connected I Revision 1 September 11, 2014 Page 36 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic A1TnACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

668 1-CBA-CP-178- CBA-CP-178 BKR EPS RELAY RMO De-energized De-energized De-energizes when RMO reset after NHY-310926 sh AE4 No BKR-RMO AT DG-CP-80 completion of EPS stepping. Eval'd as part of *,-D:G-CP-80.

669 1-CBA-CP-178 CBA-CP-178 CONTROL PANEL Energized Energized NHY-310926 sh AE4i Control Bldg, 75' elev., Yes

<GU2> CBA Mech room 670 1-CBA-CP-178- CBA-CP-178 LOCAL MAIN BKR AT On On Evaluated as part of 1-CBA-CP-178 NHY-310926 sh AE4i No BKR-MNBK <GU2>

671 1-CBA-CP-178- CBA-FN-211B SUPPLY BKR CB3 AT On On Evaluated as part of 1-CBA-CP-178 NHY-310926 sh AE4i No BKR-CB3 <GU2>

672 1-CBA-CP-178- CBA-FN-211B SUPPLY BKR DEV. On On Evaluated as part of 1-CBA-CP-178 NHY-310926 sh AE4i No BKR-CB3-42 42 MOTOR STARTER 673 1-CBA-CP-178- CBA-FN-14B SUPPLY BKR CB4 AT On On Evaluated as part of 1-CBA-CP-178 NHY-310926 sh AE4i No BKR-CB4 <GU2>

674 1-CBA-CP-178- CBA-FN-14B SUPPLY BKR DEV. 42 On On Evaluated as part of 1-CBA-CP-178 NHY-310926 sh AE4i No BKR-CB4-42 MOTOR STARTER 675 1-CBA-CP-178- CBA-E-230B CHILLER SUPPLY BKR On On Evaluated as part of 1-CBA-CP-178 NHY-310926 sh AE4i No BKR-CB2 CB2 AT <GU2>

676 1-CBA-CP-178- CBA-CP-178 CONTROL POWER On On Evaluated as part of 1-CBA-CP-178 NHY-310926 sh AE4i No BKR-CB1 BKR CB1 AT <GU2>

677 1-CBA-CP-178- CBA-CP-178 480-115 VAC Energized Energized Evaluated as part of 1-CBA-CP-178 NHY-310926 sh AE4i No BKR-CB1-XFMR TRANSFORMER AT <GU2>

678 I-CBA-CP-178- CBA-CP-178 CONTROL FUSES A, Energized Energized Evaluated as part of 1-CBA-CP-178 NHY-310926 sh AE4j No BKR-CB1-FU B. C. D. & E AT <GU2> &k 679 1-CBA-CP-178- CBA-CP-178 CONTROL RELAYS De-energized De-energized Energize when AC system placed in NHY-310926 sh AE4j No BKR-CB1-RELAY CR7, CR8, CR9, CR10, & TR AT service by Operator. Evaluated as part & k

<GU2> as 1-CBA-CP-178.

680 1-CBA-FY-26B CBA-FN-14B OUTLET DAMPER Energized Energized Energizes to open and allow start of NHY-310926 sh AE4k Control Bldg, 75' elev., Yes SOLENOID POWER CBA-FN-14B CBA Mech room 681 1-CBA-TCV- CBA-E-230B TEMP CONTROL Energized Energized NHY-310926 sh Control Bldg, 75' elev., Yes 21200B VALVE AE4na Train B Mech room 682 1-CBA-TIC- CBA-E-230B TEMP CONTROLLER Energized Energized NHY-310926 sh Control Bldg, 75' elev., Yes 21200B AE4na Train B Mech room 683 1-EAH-FN-5B-BKR TRAIN B ENCLOSURE SUPPLY FAN Closed Closed Analyzed load for SEPS as part of load NHY-310932 sh AF9 No 5B BKR AT US-62 <AF9> evaluation. Evaluated as part as I-EDE-US-62 684 1-EAH-FN-5B-BKR- 1-EAH-FN-5B BKR 15A TRIP Installed/ Installed/ Evaluated as part as 1-EDE-US-62 NHY-310932 sh AF9 No TFU FUSES (2) AT US-62 <AF9> connected connected 685 1-EAH-FN-5B-BKR- 1-EAH-FN-5B BKR 15A CLOSING Installed/ Installed/ Ckt has backup closing fuses in local NHY-310932 sh AF9 No CFU FUSES (2) AT US-62 <AF9> connected connected control. Evaluated as part as 1-EDE-US-686 1-EAH-FN-5B-BKR EAH-FN-5B BKR EPS RELAY RMO De-energized Energized De-energizes when is EPS de-energized. NHY-310932 sh AF9 No RMO AT DG-CP-80 Eval'd as part of 1-DG-CP-80.

Revision 1 September 11, 2014 Page 37 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item # Equip ID Descripton Normal State Desired State ESEL?

687 1-EDE-SWG UNIT SUB 63 PRIMARY FEEDER Closed Closed Evaluated as part as 1-EDE-SWG-6, Bus NHY-310008 No A90 BREAKER AT BUS 6 <A90> 6 switchgear 688 1-EDE-SWG UNIT SUB 63 BREAKER AT BUS 6 Reset Reset Evaluated as part as 1-EDE-SWG-6, Bus NHY-310008 No IA90-86 <A90> 86 LOCKOOUT 6 switchpear 689 1-EDE-US-63 UNIT SUB 63 Energized Energized NHY-310014 Train B Ess swgr, 21' Yes 690 1-EDE-X-5-F UNTI SUB 63 4160-480V Energized Energized Evaluated as part as 1-EDE-US-63. NHY-310052 No TRANSFORMER 691 1-EDE-US-63-AF7 UNIT SUB 63 SECONDARY Closed Closed Evaluated as part as 1-EDE-US-63. NHY-310052 No FEEDER BKR AT US-63 <AF7>

692 1-EDE-US-63-AD8 MCC-631 FEEDER BREAKER AT US Closed Closed Evaluated as part as 1-EDE-US-63. NHY-310052 No 63 <AD8>

693 1-EDE-MCC-631 MOTOR CONTROL CENTER 631 Energized Energized NHY-310032 Train B Ess swgr, 21' Yes 694 1-CAH-FN-2B- CAH-FN-2B PRIMARY BKR AT On On Analyzed load for SEPS as part of load NHY-310931 sh BC4 No BKR1 MCC-631 <BC4> evaluation. Evaluated as part as 1-EDE-MCC-631 695 1-CAH-FN-2B- CAH-FN-2B SECONDARY BKR AT On On Analyzed load for SEPS as part of load NHY-310931 sh BC4 No BKR2 MCC-631 <BC4> evaluation. Evaluated as part as 1-EDE-I MCC-631 696 1-CAH-FN-2B-BKR- CAH-FN-2B BKR 2A CONTROL Installed/ Installed/ Evaluated as part as 1-EDE-MCC-631. NHY-310931 sh BC4 No FU PWR FUSE AT MCC-631 <BC4> connected connected 697 1-CAH-FN-2B-BKR CAH-FN-2B BKR 480-120V Energized Energized Evaluated as part as 1-EDE-MCC-631. NHY-310931 sh BC4 No XFMR CONTROL TRANSFORMER AT MCC-631 <RC4>

698 1-CAH-FN-2B-BKR- CAH-FN-2B BREAKER 42X AUX De-energized De-energized Energized after de-energizing EPS & NHY-310931 sh BC4 No 42X RELAY placing fan switch in START. Evaluated as part as 1-EDE-MCC-631.

699 1-CAH-FN-2B-BKR CAH-FN-2B BREAKER 42 MOTOR De-energized De-energized Energized after de-energizing EPS & NHY-310931 sh BC4 No 42 STARTER placing fan switch in START. Evaluated as part as 1-EDE-MCC-631.

700 1-CAH-FN-2B-BKR- CAH-FN-2B BREAKER EPS RELAY De-energized De-energized De-energized after de-energizing EPS. NHY-310931 sh BC4 No HR9 HR9 CONTACT Eval'd as part as 1-DG-CP-80..

701 1-CAH-FN-2D- CAH-FN-2D PRIMARY BKR AT On On Analyzed load for SEPS as part of load NHY-310931 sh BC5 No 702 1-CAH-FN-2D- CAH-FN-2D SECONDARY BKR AT On On Analyzed load for SEPS as part of load NHY-310931 sh BC5 No BKR2 MCC-631 <BC5> evaluation. Evaluated as part as 1-EDE-MCC-631, 703 1-CAH-FN-2D-BKR- CAH-FN-2D BKR 2A CONTROL Installed/ Installed/ Evaluated as part as 1-EDE-MCC-631. NHY-310931 sh BC5 No FU PWR FUSE AT MCC-631 <BC5> connected connected 704 I1-CAH-FN-2D-BKR CAH-FN-2D BKR 480-120V Energized Energized Evaluated as part as 1-EDE-MCC-631. NHY-310931 sh BC5 No XFMR CONTROL TRANSFORMER AT VICC-631 <RCS>

Revision 1 September 11, 2014 Page 38 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

705 1-CAH-FN-2D-BKR CAH-FN-2D BREAKER 42X AUX De-energized De-energized Energized after de-energizing EPS & NHY-310931 sh BC5 No 42X RELAY placing fan switch in START. Evaluated as part as 1-EDE-MCC-631.

706 1-CAH-FN-2D-BKR CAH-FN-2D BREAKER 42 MOTOR De-energized De-energized Energized after de-energizing EPS & NHY-310931 sh BC5 No 42 STARTER placing fan switch in START. Evaluated as part as 1-EDE-MCC-631.

707 1-CAH-FN-2D-BKR CAH-FN-2D BREAKER EPS RELAY De-energized Energized De-energized after de-energizing EPS. NHY-310931 sh BC5 No HR9 HR9 CONTACT Evard as part as 1-DG-CP-80..

708 1-CS-P-243B-BKR 1-CS-P-243B BKR AT MCC-631 On On Analyzed load for SEPS as part of load NHY-310891 sh B85 No

<B85> evaluation. Evaluated as part as 1-EDE-MCC-631,,

709 1-CS-P-243B-BKR- 1-CS-P-243B BKR 2A CONTROL Installed/ Installed/ Evaluated as part as 1-EDE-MCC-631. NHY-310891 sh B85 No FU PWR FUSE AT MCC-631 <B85> connected connected 710 1-CS-P-243B-BKR- 1-CS-P-243B BKR 480-120V Energized Energized Evaluated as part as 1-EDE-MCC-631. NHY-310891 sh B85 No XFMR CONTROL TRANSFORMER AT

<B85>

____MCC-631 711 1-CS-P-243B-BKR- 1-CS-P-243B BREAKER 42 MOTOR De-energized De-energized Energized after de-energizing EPS & NHY-310891 sh B85 No 42 STARTER placing fan switch in START. Evaluated as part as 1-EDE-MCC-631.

712 1-CS-P-243B-BKR- 1-CS-P-243B BREAKER AGASTAT De-energized De-energized De-energized 30 sec after Charging NHY-310891 sh B85 No TDR TIMING RELAY TDR Pump 2B lube oil pressure is high.

Evaluated as part as 1-EDE-MCC-631.

713 1-EDE-MCC-631- 1-EDE-MCC-631 DISTR. PANEL Energized Energized Evaluated as part as 1-EDE-MCC-631. NHY-310067 No BKR-E53 XFMR FEED BKR <E53>

714 1-EDE-MCC-631- DISTR. PANEL 480-120/240V Energized Energized Evaluated as part as 1-EDE-MCC-631. NHY-310067 No

__ E53-XFMR TRANSFORMER TO <E53>

715 1-EDE-MCC-631- TRAIN B RVLIS PLASMA DISPLAY On On MCB required FLEX instrumentation. NHY-310965 sh No CK18 AT MCC-631 <E53>, CKT #18 Evaluated as part as 1-EDE-MCC-631. E53/18 FLEX ESEL - Miscellaneous DC Electrical 716 1-EDE-PP-111-B VITAL 125V DC PANEL 111B Energized Energized 1-NHY-310042 Train B Ess swgr, E.end Yes 717 1-EDE-PP-111B- 125V DC PANEL 111B MAIN On On Evaluated as part of 1-EDE-PP-111-B 1-NHY-310107 E94a No MNBK INPUT BREAEKR 718 1-EDE-PP-111B- BUS E6 125V DC BREAKER OPEN On On Provides breaker close & trip power for 1-NHY-310107 E94a No CK1 & CLOSE POWER Bus 6 loads. Evaluated as part of 1-EDE-

_PP-111-B I I 719 1-EDE-PP-111B- BUS E62 125V DC BREAKER OPEN On On Provides breaker close & trip power for 1-NHY-310107 E94a No CK3 & CLOSE POWER Bus 62 loads. Evaluated as part of 1-

_EDE-PP-111-B I Revision 1 September 11, 2014 Page 39 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item# Equip ID Description Normal State Desired State ESEL?

720 1-DG-CP-80 TRAIN B EPS SEQUENCER Installed/ Installed/ Provides load sequencing with SEPS for 1-NHY-310108 Train B Ess swgr, West Yes CABINET <HR3> connected connected support systems end 721 1-EDE-PP-111B- DG-CP-80 125V DC CONTROL On On Cabinet relay power. Evaluated as part 1-NHY-310108 E94/5 No CK5 POWER of 1-EDE-PP-111-B.

722 1-DG-CP DG-CP-80 125V DC LOCAL On On Cabinet relay power. Evaluated as part FP 31610 No

_ DCSUP-BKR BREAKER A2CB1 of 1-DG-CP-80.

723 1-DG-CP-80-FLT- DG-CP-80 125V DC SUPPLY In service In service Cabinet relay power. Evaluated as part FP 31610 No

'0 FILTER of 1-DG-CP-80.

724 1-DG-CP DG-CP-80 15V CABINET POWER Energized Energized Cabinet relay power. Evaluated as part FP 31610 No A2PS1 SUPPLY PS1 of 1-DG-CP-80.

725 1-DG-CP DG-CP-80 15V CABINET POWER Energized Energized Cabinet relay power. Evaluated as part FP 31610 No A2PS2 SUPPLY PS2 of 1-DG-CP-80.

726 1-DG-CP-80-CARD TRAIN B EPS SEQUENCER Installed/ Installed/ Various functions. Evaluated as part of 1-NHY-310108, No CABINET INTERNAL CARDS connected connected 1-DG-CP-80. FP31417, FP31418 727 1-EDE-PTB-6-B BUS E6 BUS PRIMARY SIDE PT Installed/ Installed/ Provides sensing for UV relaying. 1-NHY-310102 SH. No FUSES (4) AT Bus 6 <A73> connected connected Evaluated as part of 1-EDE-SWG-6. A73i 728 1-EDE-BUS BUS E6 BUS SECONDARY SIDE PT Installed/ Installed/ Provides sensing for UV relaying. 1-NHY-310102 SH. No BUSPT-FU1 & 2 FUSES (2) AT Bus 6 <A73> connected connected Evaluated as part of 1-EDE-SWG-6. A73i 729 1-EDE-BUS BUS E6 4200-120V BUS PT Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No BUSPT-XFMR TRANSFORMER <A73> connected connected A73_

730 1-EDE-BUS-6-27B- BUS E6 UNDERVOLTAGE RELAYS Energized De-energized Evaluated as part of I-EDE-SWG-6. I-NHY-310102 SH. No 1&2 (2) AT BUS 6 <A73> A73e,_A73_

731 1-EDE-BUS-6-UV- BUS E6 UNDERVOLTAGE CKT DC Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No FU FUSES (2), DEV, AU, AT BUS 6 connected connected A73e, A73j

<A73>

732 1-EDE-BUS-6-UV- BUS E6 UNDERVOLTAGE CKT De-energized Energized Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No 62B AGASTAT RELAY 62B A73e. A73i 733 1-EDE-BUS-6-UV- BUS E6 UNDERVOLTAGE CKT AUX De-energized Energized Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No 62BX-1 RELAY 62BX-1 A73e. A73i 734 1-EDE-BUS-6-A74- BUS E6 DG BREAKER MECH Closed Closed Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No 52S SWITCH 52S CONTACT 73/ 74 A73e, A73i 735 1-EDE-BUS-6-A7A- BUS E6 SEPS BREAKER MECH Closed Closed Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No 52S SWITCH 52S CONTACT 77/ 78 A73e, A73i 736 1-EDE-BUS-6-UV- BUS E6 UNDERVOLTAGE De-energized Energized Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No 94-IA STRIPPING RELAY 94-1A A73e 737 1-EDE-BUS-6-UV- BUS E6 UNDERVOLTAGE De-energized Energized Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No 94-1B STRIPPING RELAY 94-lB A73e 738 1-EDE-BUS-6-UV- BUS E6 UNDERVOLTAGE De-energized Energized Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No 94-2 STRIPPING RELAY 94-2 A73e 739 1-EDE-BUS-6-UV- BUS E6 UNDERVOLTAGE De-energized Energized Evaluated as part of I-EDE-SWG-6. 1-NHY-310102 SH. No 94-3 STRIPPING RELAY 94-3 IA73e 740 1-EDE-BUS-6-UV- BUS E6 UNDERVOLTAGE De-energized Energized Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No 94-4 STRIPPING RELAY 94-4 1 _A73e Revision 1 September 11, 2014 Page 40 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATI'ACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item # Equip ID Description Normal State Desired State ESEL?

741 1-EDE-BUS-6-UV- BUS E6 UNDERVOLTAGE De-energized Energized Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No 94-5 STRIPPING RELAY 94-5 A73e 742 1-EDE-BUS-6-UV- BUS E6 UNDERVOLTAGE De-energized Energized Evaluated as part of 1-EDE-SWG-6. 1-NHY-310102 SH. No 94-6 STRIPPING RELAY 94-6 A73e 743 1-EDE-PP-111B- BUS E64 125V DC BREAKER OPEN On On Provides breaker close & trip power for 1-NHY-310107 E94a No CK17 & CLOSE POWER Bus 64 loads 744 1-EDE-64-DCBKR BUS E64 LOCAL 125V DC INPUT On On Provides breaker close & trip power for 1-NHY-310103 SH. 5t No BREAKER AT US-64 <AW3> Bus 64 loads FLEX ESEL - RCS Makeup (Charging/ Mechanical) 745 1-CBS-TK-8 Refueling Water Storage Tank Filled/ Intact Filled/Intact Provide suction to charginjZ pump 1-CBS-B20233 PAB Tank farm, 20' elev Yes 746 1-CS-LCV-112-E RWST TO CHARGING PUMP B Closed Open Requires SEPS to Bus 6 power to Open. 1-CBS-B20233 PAB Tank farm, 20' Yes MOV elev., SE section 747 1-CBS-V-58 RWST TO CHARGING PUMP B Closed Open Manual Valve, screens out as ESEL 1-CS-B20725 No CHECK VALVE equipment.

748 1-CS-V-217 RWST TO CHARGING PUMP B Locked Open Open Manual Valve, screens out as ESEL 1-CS-B20725 No SUCTION ISOLATION VALVE eauipment.

749 1-CS-P-2B CHARGING PUMP B Running/ Running Provides RCS Makeup/ Seal injection 1-CS-B20725 PAB, 7' elev., Charging Yes Standby pump B room 750 1-CS-V-609 CHARGING PUMP B CASING Closed Closed Manual Valve, screens out as ESEL 1-CS-B20725 No DRAIN equipment.

751 1-CS-P-2B Gear CHARGING PUMP B GEAR DRIVE Running/ In Service Required for Charging pump operation. 1-CS-B20725 No Drive UNIT Standby Evaluated as part of CS-P-2A.

752 1-CS-P-2B Oil CHARGING PUMP B LUBE OIL In Service/ In Service Required for Charging pump operation. 1-CS-B20725 No Cooler COOLER Standby Evaluated as part of CS-P-2A.

753 1-CS-P-2B Lube CHARGING PUMP B LUBE OIL In Service/ In Service Required for Charging pump lube oil 1-CS-B20725 No Oil Filter FILTER Standby flow during pump operation. Evaluated as cart of CS-P-2A.

754 1-CS-P-2B Lube CHARGING PUMP B LUBE OIL In Service/ In Service Required for Charging pump lube oil 1-CS-B20725 No Oil Reservoir RESERVOIR Standby flow during pump operation. Evaluated as part of CS-P-2A, 755 1-CS-V-199 CHARGING PUMP B RECIRC LINE Open/ Closed Open Manual Valve, screens out as ESEL 1-CS-B20725 No CHECK VALVE equipment.

756 1-CS-V-211 CHARGING PUMP A RECIRC LINE Open/ Closed Closed Manual Valve, screens out as ESEL 1-CS-B20725 No CHECK VALVE eauipment.

757 1-CS-V-197 CHARGING PUMP B RECIRC LINE Open Open Normally Open, screens out as ESEL 1-CS-B20725 No MOV equipment.

758 1-CS-V-251 SEAL WATER HX INLET Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No ISOLATION equioment.

759 1-CS-V-860 SEAL WATER HX INLET Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No ISOLATION equipment.

760 1-CS-V-194 SEAL WATER HX OUTLET Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No

_ISOLATION _____ equipment.

Revision 1 September 11, 2014 Page 41 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

761 1-CS-V-195 SEAL WATER HX BYPASS Closed Closed Manual Valve, screens out as ESEL 1-CS-B20726 No ISOLATION eqiuipment.

762 1-CS-E-5A SEAL WATER Heat EXCHANGER In Service/ In Service Assumes Bus 5 CC cooling not 1-CS-B20726 No S5A Standby available. Using CS-E-5B_

763 1-CS-E-5B SEAL WATER Heat EXCHANGER In Service/ In Service Required for Charging pump recirc 1-CS-B20726 PAB, 7' elev., Demin Yes 5B Standby flowoath and cooling Alley, West side 764 1-CS-VW250 SEAL WATER HX LINE RELIEF Closed Closed Manual Valve, screens out. Interfaces 1-CS-B20726 No VALVE with recirc flowpath 765 1-CS-V-133 SEAL WATER RETURN FILTER Open Open Manual Valve, screens out. Interfaces 1-CS-B20726 No OUTLET ISOLATION with recirc flowpath 766 1-CS-V-132 SEAL WATER RETURN FILTER Open Open Manual Valve, screens out. Interfaces 1-CS-B20726 No INLET ISOLATION with recirc flowpath 767 1-CS-V-136 SEAL WATER RETURN FILTER Closed Closed Manual Valve, screens out. Interfaces 1-CS-B20726 No BYPASS ISOLATION with recirc flowpath 768 1-CS-F-3 SEAL WATER RETURN FILTER In Service In Service Interfaces with recirc flowpath 1-CS-B20726 PAB, 7' elev., Demin Yes 769 1-CS-V-795 SEAL WATER RETURN LINE Open Open Manual Valve, screens out. Interfaces 1-CS-B20726 No MANUAL ISOLATION with recirc flowpath 770 1-CS-V-167 SEAL WATER RETURN LINE CON'T Open Open Bus 5 powered, remains open. 1-CS-B20726 No ISOLATION MOV 771 1-CS-V-168 SEAL WATER RETURN LINE CON'T Open Closed Requires SEPS to Bus 6 power to Close. 1-CS-B20726 Con't -26' elev., S. of Yes ISOLATION MOV recirc sump B, Shield 772 1-CS-V-242 SEAL WATER RETURN to VCT Closed Closed Manual Valve, screens out. Interfaces 1-CS-B20725 No ISOLATION with recirc flowpath 773 1-CS-V-193 SEAL WATER RETURN to VCT Open Open Manual Valve, screens out. Interfaces 1-CS-B20725 No OUTLET ISOLATION with recirc flowoath 774 1-CS-LCV-112-C VCT TO CHARGING PUMP B MOV Open Closed Requires SEPS to Bus 6 power to Close. 1-CS-B20725 PAB, 53' elev., in VCT Yes valve room 775 1-RMW-V-119 RMW/ EMERG. BORATION Closed Closed Manual Valve, screens out as ESEL 1-CS-B20725 No MAKEUP LINE CHECK VALVE equipment.

776 1-CS-V-442 BA TANK MANUAL MAKEUP TO Closed Closed Manual Valve, screens out. Interfaces 1-CS-B20729 No

_ CHARGING PUMP SUCTION with recirc flowoath 777 1-CBS-V-60 RWST TO CHARGING PUMP a Closed Closed Manual Valve, screens out as ESEL 1-CS-B20725 No CHECK VALVE eauioment.

778 1-CS-V-475 SI/ CHARGING PUMP Closed Closed Normally closed MOV, screens out as 1-CS-B20725 No CROSSCONNECT MOV ESEL equipment.

779 1-RH-V-35 RHR DISCHARGE TO CHARGING Closed Closed Normally closed MOV, screens out as 1-CS-B20725 No PUMP CROSSCONNECT MOV ESEL equipment.

780 1-CS-V-227 SI/ CHARGING PUMP Closed Closed 1-CS-B20725 No CROSSCONNECT RELIEF VALVE I 781 1-CS-V-200 CHARGING PUMP 2B DISCHARGE Open/ Closed Open Manual Valve, screens out. Interfaces 1-CS-B20725 No CHECK VALVE with recirc flowpath 782 1-CS-V-209 CHARGING PUMP 2A DISCHARGE Open/ Closed Closed Manual Valve, screens out. Interfaces 1-CS-B20725 No CHECK VALVE with recirc flowpath Revision 1 September 11, 2014 Page 42 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item#_Equip ID Description Normal State Desired State ESEL?

783 1-CS-V-219 CHARGING PUMP 2B BYPASS Closed Closed Manual Valve, screens out. Interfaces 1-CS-B20725 No ISOLATION TO SEALS with recirc flowpath 784 1-CS-V-221 CHARGING PUMP 2A BYPASS Closed Closed Manual Valve, screens out. Interfaces 1-CS-B20725 No ISOLATION TO SEALS with recirc flowpath 785 1-CS-V-220 CHARGING PUMP 2B DISCHARGE Open Open Manual Valve, screens out as ESEL 1-CS-B20725 No ISOLATION VALVE equipment.

786 1-CS-V-224 CS-FCV-121 INLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-CS-B20725 No VALVE equipment.

787 1-CS-FCV-121 NORMAL CHARGING FLOW Open Open Fails open on loss of air. Flowpath not 1-CS-B20725 No CONTROL AOV used. Using high head flowpath to cold leas for makeup.

788 1-CS-V-224 CS-FCV-121 OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-CS-B20725 No VALVE equipment.

789 1-CS-V-213 CS-P-128 DISCHARGE CHECK Closed Closed Manual Valve, screens out as ESEL 1-CS-B20725 No VALVE equipment.

790 1-CS-V-138 CS-HCV-182 INLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-CS-B20725 No VALVE equipment.

791 1-CS-HCV-182 RCP SEAL FLOW CONTROL AOV Open Open Fails open on loss of air. ELAP assumes 1-CS-B20725 No, air not available, local actions required.

792 1-CS-V-140 CS-HCV-182 OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-CS-B20725 No VALVE equipment.

793 1-CS-V-141 CS-HCV-182 BYPASS ISOLATION Closed Closed Manual Valve, screens out as ESEL 1-CS-B20725 No VALVE equipment.

794 1-CS-V-142 NORMAL CHARGING CON'T Open Open BUS 5 powered, screens out as ESEL 1-CS-B20725 No ISOLATION MOV equipment.

795 1-CS-V-143 NORMAL CHARGING CON'T Open Closed Requires SEPS to Bus 6 power to Close. 1-CS-B20725 PAB, -26' elev., Mech Yes ISOLATION MOV pen, North end 796 1-CS-V-1254 SEAL INJECTION FILTER 4A INLET Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No ISOLATION equipment.

797 1-CS-V-127 SEAL INJECTION FILTER 4A INLET Closed Closed Manual Valve, screens out as ESEL 1-CS-B20726 No ISOLATION equipment.

798 1-CS-V-126 SEAL INJECTION FILTER 4A Closed Closed Manual Valve, screens out as ESEL 1-CS-B20726 No OUTLET ISOLATION equipment.

799 1-CS-V-1253 SEAL INJECTION FILTER 4A Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No OUTLET ISOLATION equipment.

800 I-CS-F-4A SEAL WATER SUPPLY FILTER 4A In Standby In Standby 1-CS-B20726 PAB, 7' elev., Demin Yes 801 1-CS-V-1252 SEAL INJECTION FILTER 4B INLET Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No ISOLATION equipment.

802 1-CS-V-123 SEAL INJECTION FILTER 4BINLET Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No I ISOLATION equipment.

803 1-CS-V-122 SEAL INJECTION FILTER 4B Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No OUTLET ISOLATION lecuipment. I I Revision 1 September 11, 2014 Page 43 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item # Equip ID Description Normal State Desired State ESEL?

804 1-CS-V-1251 SEAL INJECTION FILTER 4B Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No OUTLET ISOLATION equipment.

805 1-CS-F-4B SEAL WATER SUPPLY FILTER 4B In Service In Service Only one flowpath required. CS-F-4A 1-CS-B20726 No I_ considered to be in service.

806 1-CS-V-165 RCP 1A SEAL SUPPLY THROTTLE Throttled Throttled Manual Valve, screens out as ESEL 1-CS-B20726 No VALVE equipment.

807 1-CS-V-166 RCP 1A SEAL SUPPLY ISOLATION Open Open Bus 5 powered, screens out as ESEL 1-CS-B20726 No MOV equipment.

808 1-CS-V-4 RCP 1A SEAL SUPPLY CHECK Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No VALVE equipment.

809 1-CS-V-3 RCP 1A SEAL SUPPLY MANUAL Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No

_ ISOLATION equipment.

810 1-CS-V-2 RCP 1A SEAL SUPPLY CODE Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No CHECK VALVE equipment.

811 1-CS-V-471 RCP 1A SEAL SUPPLY CODE Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No CHECK VALVE equipment.

812 1-CS-V-161 RCP 1B SEAL SUPPLY THROTTLE Throttled Throttled Manual Valve, screens out as ESEL 1-CS-B20726 No VALVE equipment.

813 1-CS-V-162 RCP 1B SEAL SUPPLY ISOLATION Open Open Bus 5 powered, screens out as ESEL 1-CS-B20726 No MOV equipment.

814 1-CS-V-20 RCP 1B SEAL SUPPLY CHECK Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No VALVE equipment.

815 1-CS-V-19 RCP 1B SEAL SUPPLY MANUAL Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No

_ ISOLATION equipment.

816 1-CS-V-18 RCP 1B SEAL SUPPLY CODE Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No CHECK VALVE equipment.

817 1-CS-V-472 RCP 1B SEAL SUPPLY CODE Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No CHECK VALVE equipment.

818 l-CS-V-157 RCP IC SEAL SUPPLY THROTTLE Throttled Throttled Manual Valve, screens out as ESEL 1-CS-B20726 No VALVE equipment.

819 1-CS-V-158 RCP 1C SEAL SUPPLY ISOLATION Open Open Bus 5 powered, screens out as ESEL 1-CS-1320726 No MOV equipment.

820 1-CS-V-36 RCP 1C SEAL SUPPLY CHECK Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No VALVE equipment.

821 1-CS-V-35 RCP IC SEAL SUPPLY MANUAL Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No ISOLATION equipment.

822 1-CS-V-34 RCP 1C SEAL SUPPLY CODE Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No CHECK VALVE equipment.

823 1-CS-V-473 RCP 1C SEAL SUPPLY CODE Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No CHECK VALVE equipment.

824 1-CS-V-153 RCP 1D SEAL SUPPLY THROTTLE Throttled Throttled Manual Valve, screens out as ESEL 1-CS-B20726 No VALVE equipment.

825 1-CS-V-154 RCP 1D SEAL SUPPLY ISOLATION Open Open Bus 5 powered, screens out as ESEL 1-CS-B20726 No MOV equipment.

Revision I September 11, 2014 Page 44 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

826 1-CS-V-52 RCP ID SEAL SUPPLY CHECK Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No VALVE equipment.

827 1-CS-V-51 RCP 1D SEAL SUPPLY MANUAL Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No ISOLATION equipment.

828 1-CS-V-50 RCP 1D SEAL SUPPLY CODE Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No CHECK VALVE equipment.

829 1-CS-V-474 RCP 1D SEAL SUPPLY CODE Open Open Manual Valve, screens out as ESEL 1-CS-B20726 No CHECK VALVE equipment.

830 1-CS-V-138 HIGH HEAD COLD LEG SUPPLY Closed Closed Bus 5 powered, normally closed, 1-SI-B20447 No MOV screens out as ESEL equipment.

831 1-SI-V-139 HIGH HEAD COLD LEG SUPPLY Closed Open Requires SEPS to Bus 6 power to Open. 1-SI-B20447 PAB, -26' elev., Mech Yes MOV pen, South end 832 1-SI-V-239 TEST CONNECTION FOR HIGH Closed Open Manual Valve, screens out as ESEL 1-SI-B20447 No HEAD INJECTION equipment. PAB Mech pen, -20' elev 833 1-CS-V-297 HIGH HEAD COLD LEG SUPPLY Removed Removed Internals removed, screens out as ESEL 1-SI-B20447 No CHECK VALVE equipment.

834 1-CS-V-297 HIGH HEAD COLD LEG SUPPLY Closed Open Manual Valve, screens out as ESEL 1-SI-B20447 No CHECK VALVE equipment.

835 1-SI-V-158 HIGH HEAD SUPPLY TEST HEADER Closed Closed Normally closed/ sol. de-energized. 1-SI-B20447 No AOV Fails closed on loss of air 836 1-SI-V-159 HIGH HEAD SUPPLY TEST HEADER Closed Closed Normally closed/ sol. de-energized. 1-SI-B20447 No AOV Fails closed on loss of air 837 1-SI-V-151 HIGH HEAD LOOP 3 BRANCH Locked Throttled Throttled Manual Valve, screens out as ESEL 1-SI-B20447 No THROTTLE VALVE equipment.

838 1-Sl-V-152 HIGH HEAD LOOP 3 BRANCH Closed Open Manual Valve, screens out as ESEL 1-SI-B20447 No THROTTLE VALVE equipment.

839 1-SI-V-147 HIGH HEAD LOOP 2 BRANCH Locked Throttled Throttled Manual Valve, screens out as ESEL 1-SI-B20447 No THROTTLE VALVE equipment.

840 I-SI-V-148 HIGH HEAD LOOP 2 BRANCH Closed Open Manual Valve, screens out as ESEL 1-SI-B20447 No THROTTLE VALVE equipment.

841 1-SI-V-143 HIGH HEAD LOOP 1 BRANCH Locked Throttled Throttled Manual Valve, screens out as ESEL 1-SI-B20447 No THROTTLE VALVE equipment.

842 1-SI-V-144 HIGH HEAD LOOP 1 BRANCH Closed Open Manual Valve, screens out as ESEL I-SI-B20447 No THROTTLE VALVE equipment.

843 1-SI-V-155 HIGH HEAD LOOP 4 BRANCH Locked Throttled Throttled Manual Valve, screens out as ESEL 1-SI-B20447 No THROTTLE VALVE equipment.

844 1-SI-V-156 HIGH HEAD LOOP 4 BRANCH Closed Open Manual Valve, screens out as ESEL 1-SI-B20447 No

_THROTTLE VALVE quipment.

FLEX ESEL - RCS Makeup (Charging/ Electrical) 845 1-CS-P-2B-BKR CS-P-2B BREAKER AT BUS 6 Open/Closed Closed Evaluated as part of 1-EDE-SWG-6 NHY-310891 sh.A82 No

<A82> I 846 1-CS-P-2B-BKR-86 CS-P-2B BREAKER AT BUS 6 Reset Reset Evaluated as part of 1-EDE-SWG-6 NHY-310891 sh. A82 No

<A82> 86 LOCKOUT RELAY I Revision I September 11, 2014 Page 45 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item# Normal State Desired State ESEL?

847 1-CS-P-2B-BKR- CS-P-2B FEEDER BREAKER 125V Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6 NHY-310891 sh. No CFU DC CLOSING FUSES (2) connected connected A82b 848 1-CS-P-2B-BKR- CS-P-2B FEEDER BREAKER 125V Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6 NHY-310891 sh. No ITFU DC TRIPPING FUSES (2) connected connected A82b 849 1-CS-P-2B-BKR- CS-P-2B BREAKER AT BUS 6 De-energized Energized De-energizes when RMO reset after NHY-310891 sh. No RMO <A82> RMO AUX RELAY completion of EPS stepping. Evaluated A82b as part of 1-DG-CP-80.

850 1-CS-LCV-112-E- CS-LCV-112E BREAKER AT MCC- On On Valve required to open to align CS-P-2B NHY-310891 sh. B79 No BKR 612 <B79> suction to RWST. Evaluated as part of 1-EDE-MCC-612 _

851 1-CS-LCV-112-E- CS-LCV-112E BKR 2A CONTROL Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B79 No BKR-FU PWR FUSE AT MCC-612 <B79> connected connected 852 1-CS-LCV-112-E- CS-LCV-112E BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B79 No BKR-XFMR CONTROL TRANSFORMER AT MCC-612 <B79>

853 1-CS-LCV-112-E- CS-LCV-112E DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B79 No BKR-42/O STARTER AT MCC-612 <B79>

854 1-CS-LCV-112-E- CS-LCV-112E DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B79 No BKR-42/C STARTER AT MCC-612 <B79>

855 I-CS-LCV-112-E- CS-LCV-112E AUX RELAY RI AT De-energized Energized Required to energize to open valve. NHY-310891 sh. B79 No BKR-R1 MCC-612 <EDO> Eval'd as part of I-EDE-MCC-612 856 1-CS-LCV-112-C- CS-LCV-112C BREAKER AT MCC- On On Valve required to close to align CS-P-2B NHY-310891 sh. B83 No BKR 612 <B83> suction to RWST. Evaluated as part of 1-EDE-MCC-612 857 1-CS-LCV-112-C- CS-LCV-112C BKR 2A CONTROL Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B83 No BKR-FU PWR FUSE AT MCC-612 <B83> connected connected 858 1-CS-LCV-112-C- CS-LCV-112C BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B83 No BKR-XFMR CONTROL TRANSFORMER AT MCC-612 <883>

859 1-CS-LCV-112-C- CS-LCV-112C DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B83 No BKR-42/O STARTER AT MCC-612 <B83>

860 1-CS-LCV-112-C- CS-LCV-112C DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B83 No BKR-42/C STARTER AT MCC-612 <B83>

861 1-CS-LCV-112-C- CS-LCV-112C AUX RELAY R2 AT De-energized Energized Required to energize to close valve. NHY-310891 sh. B83 No BKR-R2 MCC-615 <E30> Evaluated as part of 1-EDE-MCC-612 862 1-CS-V-475-BKR CS-V-475 BREAKER AT MCC-612 On On Valve required to remain closed to NHY-310891 sh. B46 No

<B46> isolate flowpath. Evaluated as part of 1

_________________________________ ___________EDE-MCC-612 ________ _________

863 1-CS-V-475-BKR- CS-V-475 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B46 No FU FUSE AT MCC-612 <B46> connected connected Revision 1 September 11, 2014 Page 46 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATrACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State NotesReference PantLocation ESEL?

864 1-CS-V-475-BKR- CS-V-475 BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B46 No XFMR CONTROL TRANSFORMER AT MCC-612 <B46>

865 1-CS-V-475-BKR- CS-V-475 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B46 No

.42/0 STARTER AT MCC-612 <B46>

866 1-CS-V-475-BKR- CS-V-475 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B46 No 42/C STARTER AT MCC-612 <B46>

867 1-RH-V-35-BKR RH-V-35 BREAKER AT MCC-521 On On Valve required to remain closed to NHY-310887 sh. B59 No

<B59> isolate flowpath. Assumes no AC

__ _ _ _ower to ius.5, 868 1-RH-V-35-BKR- RH-V-35 BKR 2A CONTROL PWR Installed/ Installed/ Assumes no AC power to Bus 5. NHY-310887 sh. B59 No FU FUSE AT MCC-521 <B59> connected connected 869 1RH-V-35-BKR- RH-V-35 BKR 480-120V CONTROL Energized Energized Assumes no AC power to Bus 5. NHY-310887 sh. B59 No XFMR TRANSFORMER AT MCC-521

<B59>

870 I-RH-V-35-BKR- RH-V-35 DEV. 42/0 MOTOR De-energized De-energized Assumes no AC power to Bus 5. NHY-310887 sh. B59 No 42/D STARTER AT MCC-521 <B59>

871 1-RH-V-35-BKR- RH-V-35 DEV. 42/C MOTOR De-energized De-energized Assumes no AC power to Bus 5. NHY-310887 sh. B59 No 42/C STARTER AT MCC-521 <B59>

872 1-CS-V-143-BKR CS-V-143 BREAKER AT MCC-612 On On Valve required to close to isolate NHY-310891 sh. B87 No

<B87> flowpath.

873 1-CS-V-143-BKR- CS-V-143 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B87 No FU FUSE AT MCC-612 <B87> connected connected 874 1-CS-V-143-BKR- CS-V-143 BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B87 No XFMR CONTROL TRANSFORMER AT MCC-612 <B87>

875 1-CS-V-143-BKR- CS-V-143 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of l-EDE-MCC-612 NHY-310891 sh. B87 No 42/r STARTER AT MCC-612 <B87>

876 1-CS-V-143-BKR- CS-V-143 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B87 No 42/C STARTER AT MCC-612 <B87>

877 1-SI-V-138-BKR SI-V-138 BREAKER AT MCC521 On On Valve required to close to isolate NHY-310890 sh. B31 No

<B31> flowpath. Assumes no AC power to Bus 878 1-Sl-V-138-BKR- SI-V-138 BKR 2A CONTROL PWR Installed/ Installed/ Assumes no AC power to Bus 5. NHY-310890 sh. B31 No FU FUSE AT MCC-521 <B31> connected connected 879 1-SI-V-138-BKR- SI-V-138 BKR 480-120V CONTROL Energized Energized Assumes no AC power to Bus 5. NHY-310890 sh. B31 No XFMR TRANSFORMER AT MCC-521

<B31>

880 1-SI-V-138-BKR- SI-V-138 DEV. 42/0 MOTOR De-energized De-energized Assumes no AC power to Bus 5. NHY-310890 sh. B31 No 42/0 STARTER AT MCC-521 <B31> I I I I 881 1-SI-V-138-BKR- SI-V-138 DEV. 42/C MOTOR De-energized De-energized Assumes no AC power to Bus 5. NHY-310890 sh. B32 No 42/C STARTER AT MCC-521 <B31> I 1 1 _ _ _ _ 1 _

Revision 1 September 11, 2014 Page 47 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

882 1-SI-V-139-BKR Sl-V-139 BREAKER AT MCC-621 On On Valve required to close to isolate NHY-310890 sh. B32 No

<B32> flowpath & open for RCS makeup.

Evaluated as part of 1-EDE-MCC-621 883 1-SI-V-139-BKR- SI-V-139 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-621 NHY-310890 sh. B32 No FU FUSE AT MCC-621 <B32> connected connected 884 1-SI-V-139-BKR- S1-V-139 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-621 NHY-310890 sh. B32 No XFMR TRANSFORMER AT MCC-621

<B32>

885 1-SI-V-139-BKR- S5-V-139 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310890 sh. B32 No 42/0 STARTER AT MCC-621 <B32>

886 1-SI-V-139-BKR- SI-V-139 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310890 sh. B32 No 42/C STARTER AT MCC-621 <B32>

887 1-MM-CP-915B TRAIN B MSO AUX RELAY PANEL, Energized Energized NHY-310890 sh. B32 Train B Ess swgr to elec. Yes MM-CP-915B <FN9> tunnel, 21' elev.

888 1-MM-CP-915B- SI-V-139 AUX RELAY MSO-5 AT De-energized Energized Relay must energize to open valve. NHY-310890 sh. B32 No MSO-5 MM-CP-915B <FN9> Evald as part of 1-MM-CP-915B 889 1-CS-V-197-BKR CS-V-197 BREAKER AT MCC-612 On On Valve required to be open for pump NHY-310891 sh. B86 No

<B86> protection. Evaluated as part of 1-EDE-MCC-61.2.

890 1-CS-V-197-BKR- CS-V-197 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B86 No FU FUSE AT MCC-612 <B86> connected connected 891 1-CS-V-197-BKR- CS-V-197 BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B86 No XFMR CONTROL TRANSFORMER AT MCC-612 <B86>

892 1-CS-V-197-BKR- CS-V-197 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B86 No 42/0 STARTER AT MCC-612 <B86>

893 1-CS-V-197-BKR- CS-V-197 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of l-EDE-MCC-612 NHY-310891 sh. B86 No 42/C STARTER AT MCC-612 <B86>

894 1-CS-V-168-BKR1 CS-V-168 PRIMARY BREAKER 52-1 On On Valve required to be closed to isolate NHY-310891 sh. B72 No AT MCC-612 <B72> containment. Evaluated as part of 1-EDE-MCC-612.

895 1-CS-V-168-BKR2 CS-V-168 SECONDARY BREAKER On On Valve required to be closed to isolate NHY-310891 sh. B72 No 52-2 AT MCC-612 <B72> containment. Evaluated as part of 1-EDF-MCC-612.

896 1-CS-V-168-BKR- CS-V-168 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B72 No FU FUSE AT MCC-612 <B72> connected connected 897 1-CS-V-168-BKR- CS-V-168 BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B72 No XFMR CONTROL TRANSFORMER AT MCC-612 <B72>

898 1-CS-V-168-BKR- CS-V-168 DEV. 42-1/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B72 No 42-1/0 STARTER AT MCC-612 <B72> I 899 1-CS-V-168-BKR- CS-V-168 DEV. 42-1/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B72 No 42-1/C STARTER AT MCC-612 <B72> I Revision 1 September 11, 2014 Page 48 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL De p Equipment Equipment Notes Reference Plant Location Include on Item # Equip ID escription Normal State Desired State ESEL?

900 1-CS-V-168-BKR- CS-V-168 DEV. 42-2 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310891 sh. B72 No 42-2 STARTER AT MCC-612 <B72>

901 1-SI-FY-2416 SI-V-158 SOLENOID VALVE De-energized De-energized Required to be de-energized to close SI- NHY-310890 sh. No 902 1-EDE-PP-112B- SI-V-158 CONTROL POWER AT Energized Energized Evaluated as part of 1-EDE-PP-112B NHY-310890 sh. No

_CK7 EDE-PP-112B <E88>. CKT #7 E88/7 903 1-EDE-MM-580- SI-V-158 CONTROL FUSES FU3 & Installed/ Installed/ Evaluated as part of 1-EDE-MM-580 NHY-310890 sh. No FU3 & 4 FU4 AT EDE-MM-580 <E4C> connected connected E88/7 904 1-SI-FY-2406 SI-V-159 SOLENOID VALVE De-energized De-energized Required to be de-energized to close SI- NHY-310890 sh. No V-159. Mounted in valve, eval'd as part E89/4 of 1-SI-V-159.

905 1-ED-PP-122B 125V NON ESSENTIAL DC Energized Energized NHY-310107 sh. Train A ess swgr, West Yes DISTRIBUTION PANEL E89A of MCC-231 906 1-ED-PP-122B- SI-V-159 CONTROL POWER AT Energized Energized Evaluated as part of 1-ED-PP-122B NHY-310890 sh. Train A ess swgr, West No CK4 EDE-PP-122B <E89>. CKT #4 E89/4 of MCC-231 907 1-EDE-MM-583 CON'T PENETRATION FUSE Energized Energized NHY-310890 sh. Train A ess swgr, West Yes PANEL. EDE-MM-583 <E4F> E89/4 of MCC-231 908 1-EDE-MM-583- SI-V-159 CONTROL FUSES FU9 & Installed/ Installed/ Evaluated as part of 1-EDE-MM-583 NHY-310890 sh. No FU9 & 10 FU10 AT EDE-MM-583 <E4F> connected connected E89/4 909 1-EDE-MM-583- SI-V-159 CONTROL FUSES FUll & Installed/ Installed/ Evaluated as part of 1-EDE-MM-583 NHY-310890 sh. No FUll & 12 FU12 AT EDE-MM-583 <E4F> connected connected E89/4 FLEX ESEL - RCS Makeup (Support Systems/ Mechanical) 910 1-SW-P-110-B TRAIN B COOLING TOWER PUMP Standby Running 1-SW-B20794 Cooling Tower, 46' Yes 110B elev., Pump room 911 1-SW-EP-41 COOLING TOWER PUMP 110B Installed Installed Manual Equipment, screens out as ESEL 1-SW-B20794 No DISCHARGE EXPANSION JOINT equipment.

912 1-SW-V-24 COOLING TOWER PUMP 110B Closed Open Manual Valve, screens out as ESEL 1-SW-B20794 No DISCHARGE CHECK VALVE equipment.

913 1-SW-V-26 COOLING TOWER PUMP 110B Locked Closed Closed Normally De-energized, screens out as 1-SW-B20794 No TEST MOV ESEL equipment.

914 1-SW-V-25 COOLING TOWER PUMP 110B Closed Open 1-SW-B20794 Cooling Tower, 46' Yes DISCHARGE MOV elev., Pipe bridge 915 1-SW-V-27 COOLING TOWER PUMP 110B Open Closed Pump protection 1-SW-B20794 Cooling Tower, 46' Yes RECIRC MOV elev., Pipe bridge 916 1-SW-V-140 COOLING TOWER RETURN SPRAY Open Closed Cooling function 1-SW-B20794 Cooling Tower, 46' Yes MOV elev., Outside railing 917 1-SW-FN-51B TRAIN B COOLING TOWER FAN Standby Running 1-SW-B20794 Cooling Tower, roof Yes 918 2-SW-FN-51B TRAIN B COOLING TOWER FAN Standby Running 1-SW-B20794 Cooling Tower, roof Yes 919 1-SW-V-28 SW-P-41B DISCHARGE CHECK Open/ Closed Closed Manual Valve, screens out as ESEL 1-SW-B20794 No VALVE equipment.

920 1-SW-V-30 SW-P-41D DISCHARGE CHECK Open/ Closed Closed Manual Valve, screens out as ESEL 1-SW-B20794 No VALVE equipment.

921 1-SW-V-65 SW-S-11 INLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-SW-B20795 No I _equipment.

Revision 1 September 11, 2014 Page 49 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

922 1-SW-V-67 SW-S-11 OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-SW-B20795 No equipment.

923 1-SW-V-66 SW-S-11 BYPASS ISOLATION Closed Closed Manual Valve, screens out as ESEL l-SW-B20795 No equipment.

924 1-SW-S-11 TRAIN B SW STRAINER 11 Installed Installed 1-SW-B20795 PAB, 53' elev., NW Yes 925 1-SW-V-12 CC-E-17B INLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-SW-B20795 No equipment.

926 l-SW-V-17 CC-E-17B OUTLET ISOLATION Open Open Normally open MOV. Required to be 1-SW-B20795 No MOV open for cooling function. Screens out a,; ESEL equioment.

927 1-CC-E-17-B TRAIN B PCCW HEAT EXCHANGER Installed Installed Component cooling function 1-SW-B20795 PAB, 25' elev., NW Yes corner 928 1-SW-V-73 CC-E-17B PIPING RELIEF VALVE Open Open Manual Valve, screens out as ESEL I-SW-B20795 No equipment.

929 I-DG-E-42-B TRAIN B DG HEAT EXCHANGER Installed Installed Flowpath through HX is aligned. Not l-SW-B20795 No required with DG 1B not available.

930 1-SW-EP-48 DG-E-42B INLET EXPANSION Installed Installed Manual Equipment, screens out as ESEL 1-SW-B20795 No JOINT equipment.

931 1-SW-V-5 T. BLDG LOADS SUPPLY Open Closed Required to Close to protect flowpath 1-SW-B20795 PAB, 64' elev., Strainer Yes ISOLATION MOV room, upper mezz.

932 1-SW-V-76 T. BLDG LOADS CT RETURN Closed Closed Normally closed MOV. Required to 1-SW-B20795 No ISOLATION MOV remain closed to protect flowpath.

__Screens out as ESEL eauioment 933 1-SW-V-19 TRAIN B SW RETURN TO OCEAN Open Closed Required to Close to protect flowpath 1-SW-B20795 PAB, 25' elev., NW end, Yes MOV 10' up 934 l-SW-V-23 TRAIN B SW RETURN TO Closed Open Required to Open 1-SW-B20795 PAB, 25' elev., NW end, Yes COOLING TOWER MOV 4' up 935 1-CC-TK-19-B TRAIN B PCCW HEAD TANK Installed Installed 1-CC-B20211 PAB, 64' elev., NW end Yes 936 1-CC-V-313 PCCW HEAD TANK RECIRC VALVE Closed Closed Manual Valve, screens out as ESEL 1-CC-B20211 No equipment.

937 1-CC-V-1276 PCCW HEAD TANK OUTLET Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No ISOLATION equipment.

938 1-CC-V-1273 PCCW HEAD TANK OUTLET Locked Closed Closed Manual Valve, screens out as ESEL 1-CC-B20211 No CROSSCONNECT ISOLATION equipment.

939 1-CC-V-301 CC-P-11B SUCTION ISOLATION Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No equipment.

940 1-CC-P-11B TRAIN B CC PUMP 11B Running/ Running/ Either CC-P-11B or 11D will be in 1-CC-B20211 PAB, 25' elev., Middle, Yes Standby Standby service. East side 941 I-CC-V-295 CC-P-11B DISCHARGE CHECK Open/ Closed Open/ Closed Open if CC-P-11B running, Closed if CC- 1-CC-B20211 No VALVE I _P-11D running.

942 1-CC-V-296 CC-P-11B DISCHARGE ISOLATION Locked Open Open Manual Valve, screens out as ESEL I-CC-B20211 No I________ _ _equipment. I I I _ _

Revision I September 11, 2014 Page 50 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

943 1-CC-V-300 CC-P-11D SUCTION ISOLATION Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No equipment.

944 1-CC-P-11D TRAIN B CC PUMP 11D Running/ Running/ Either CC-P-11B or 11D will be in 1-CC-B20211 No I Standby Standby service. Only one flowpath req'd 945 1-CC-V-298 CC-P-11D DISCHARGE CHECK Open/ Closed Open/ Closed Open if CC-P-11D running, Closed if CC- 1-CC-B20211 No VALVE P-11B running.

946 1-CC-V-299 CC-P-11D DISCHARGE ISOLATION Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No equipment.

947 1-CC-V-1266 PCCW PUMP SUCTION Locked Closed Closed Manual Valve, screens out as ESEL 1-CC-B20211 No CROSSCONNECT ISOLATION equipment.

948 1-CC-V-1303 RM-6515 OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No equipment.

949 1-CC-V-1301 RM-6515 OUTLET ISOLATION Open Open Required to be closed to isolate 1-CC-B20211 PAB, 25' elev., NE end, Yes AOV flowpath on low head tank level 10 up 950 1-CC-FY-1301 CC-V-1301 SOLENOID VALVE Energized/Open Energized/Open Required to de-energize to isolate NHY-310895 sh. No flowpath. Evaluated as part of 1-CC-V- E2U/9a

_ _1301.

951 1-CC-V-483 RM-6515 INLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No equipment.

952 1-CC-V-986 RM-6515 INLET ISOLATION AOV Open Open Required to be closed to isolate I-CC-B20211 PAB, 25' elev., NE end, Yes flowpath on low head tank level 10 up 953 1-CC-FY-986 CC-V-986 SOLENOID VALVE Energized/Open Energized/Open Required to de-energize to isolate NHY-310895 sh. No flowpath. Evaluated as part of 1-CC-V- E2U/9a 986.

954 1-CC-V-297 CC-E-17B INLET ISOLATION Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No equipment.

955 1-CC-V-297 CC-E-17B OUTLET ISOLATION Locked Open Open Manual Valve, screens out as ESEL l-CC-B20211 No equipment.

956 1-CC-TV-2271-1 CC-E-17B OUTLET TEMPERATURE Modulating Modulating Cooling Function 1-CC-B20211 PAB, 25' elev., N. end, Yes CONTROL AOV 18' above floor 957 1-CC-TV-2271-2 CC-E-17B BYPASS TEMPERATURE Modulating Modulating Cooling Function 1-CC-B20211 PAB, 25' elev., N. end, Yes CONTROL AOV 18' above floor 958 1-CC-TV-2271-1/2. CC TEMP CONTROL VALVES N2 Installed Installed! 1-IA-B20647 PAB, 25' elev., N. end, Yes N2-1 BOTTLE STANTION IN PAB Connected Connected at stantion 959 1-CC-TV-2271-1/2- CC TEMP CONTROL VALVES N2 Installed / Installed / 1-IA-B20647 PAB, 25' elev., N. end, Yes N2-2 BOTTLE STANTION IN PAB Connected Connected at stantion 960 1-CC-TV-2271-1/2. CC TEMP CONTROL VALVES N2 Installed / Installed / 1-IA-B20647 PAB, 25' elev., N. end, Yes N2-3 BOTTLE STANTION IN PAB Connected Connected at stantion 961 1-CC-TV-2271-1/2- CC TEMP CONTROL VALVES N2 Installed / Installed / 1-IA-B20647 PAB, 25' elev., N. end, Yes N2-4 BOTTLE STANTION IN PAB Connected Connected at stantion 962 I-IA-MM-747A CC TEMP CONTROL VALVES N2 Installed / Installed / Evaluated as part of N2 bottle storage 1-IA-B20647 No SUPPLY BOTTLE Connected Connected stantion I 963 1-CC-TV-2271- IA-MM-747A OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL i-IA-B20647 No V4E I_ _ _equipment. III Revision 1 September 11, 2014 Page 51 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item # Equip ID Description Normal State DesiredState ESEL?

964 1-IA-MM-747B CC TEMP CONTROL VALVES N2 Installed / Installed / Evaluated as part of N2 bottle storage 1-IA-B20647 No SUPPLY BOTTLE Connected Connected stantion 965 1-CC-TV-2271- IA-MM-747B OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No

_V4D equipment.

966 1-IA-MM-747C CC TEMP CONTROL VALVES N2 Installed / Installed / Evaluated as part of N2 bottle storage 1-IA-B20647 No

_ SUPPLY BOTTLE Connected Connected stantion_

967 1-CC-TV-2271- IA-MM-747C OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No V4C equipment.

968 1-IA-MM-747D CC TEMP CONTROL VALVES N2 Installed I Installed / Evaluated as part of N2 bottle storage 1-IA-B20647 No SUPPLY BOTTLE Connected Connected stantion 969 1-CC-TV-2271- IA-MM-747D OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No V4B equipment.

970 1-IA-MM-747E CC TEMP CONTROL VALVES N2 Installed / Installed / Evaluated as part of N2 bottle storage 1-IA-B20647 No SUPPLY BOTTLE Connected Connected stantion 971 1-CC-TV-2271- IA-MM-747E OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No

_V4F equipment.

972 1-IA-MM-747F CC TEMP CONTROL VALVES N2 Installed / Installed / Evaluated as part of N2 bottle storage 1-1A-B20647 No SUPPLY BOTTLE Connected Connected stantion 973 1-CC-TV-2271- IA-MM-747F OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No V4G eauipment.

974 1-IA-MM-747G CC TEMP CONTROL VALVES N2 Installed / Installed / Evaluated as part of N2 bottle storage 1-IA-B20647 No SUPPLY BOTTLE Connected Connected stantion 975 1-CC-TV-2271- IA-MM-747G OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No V4H equipment.

976 1-IA-MM-747H CC TEMP CONTROL VALVES N2 Installed / Installed / Evaluated as part of N2 bottle storage 1-IA-B20647 No SUPPLY BOTTLE Connected Connected stantion 977 1-CC-TV-2271-V41 IA-MM-747H OUTLET ISOLATION Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No equipment.

978 1-CC-PCV-2271 TEMP CONTROL AOV N2 SUPPLY Set at 100 psig Set at 100 psig Evaluated as part of N2 bottle storage 1-IA-B20647 No PRESSURE REGULATOR stantion 979 1-CC-TV-2271- TEMP CONTROL AOV N2 SUPPLY Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No V4A ISOLATION equipment.

980 1-CC-TY-2271 CC-TY-2271-4 I/P AIR ISOLATION Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No V4 eauipment.

981 1-CC-PCV-2271-1 CC-TY-2271-1 I/P AIR REGULATOR Installed/ Installed / Evaluated as part of 1-CC-TV-2271-1/2- 1-IA-B20647 No Connected Connected N2-1 982 1-CC-TY-2271-4 CC-TV-2271-1 POSITIONER I/P Installed / Installed / Evaluated as part of 1-CC-TV-2271-1/2- 1-IA-B20647 No Connected Connected N2-1 983 1-CC-TY-2271-1 CC-TV-2271-1 POSITIONER Energized/ Air Energized/ Air Evaluated as part of 1-CC-TV-2271-1/2- 1-IA-B20647 No I SIGNAL SUPPLY SOLENOID aliened alie-ned N2-1 984 1-CC-TV-2271 CC-TV-2271-1 POSITIONER AIR Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No V4 ISOLATION equipment.

985 1-CC-TY-2271 CC-TY-2271-5 I/P AIR ISOLATION Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No V4 equipment.

Revision 1 September 11, 2014 Page 52 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Plant Location Include on item# Normal State Desired State ESEL?

986 1-CC-PCV-2271-2 CC-TY-2271-2 I/P AIR REGULATOR Installed / Installed / Evaluated as part of 1-CC-TV-2271-1/2- 1-IA-B20647 No Connected Connected N2-1 987 1-CC-TY-2271 CC-TV-2271-2 POSITIONER I/P Installed / Installed / Evaluated as part of 1-CC-TV-2271-1/2- 1-IA-B20647 No

_V4 Connected Connected N2-1 988 1-CC-TY-2271-2 CC-TV-2271-2 POSITIONER Energized/ Air Energized/ Air Evaluated as part of 1-CC-TV-2271-1/2- 1-IA-B20647 No SIGNAL SUPPLY SOLENOID aligned aligned N2-1 989 1-CC-TV-2271 CC-TV-2271-2 POSITIONER AIR Open Open Manual Valve, screens out as ESEL 1-IA-B20647 No V4 ISOLATION equipment.

990 1-CC-V-1264 PCCW PUMP DISCHARGE Locked Closed Closed Manual Valve, screens out as ESEL 1-CC-B20211 No CROSSCONNECT ISOLATION equipment.

991 1-CC-V-315 CS-P-2B OIL COOLER PCCW INLET Locked Throttled Throttled Manual Valve, screens out as ESEL 1-CC-B20211 No ISOLATION equipment.

992 1-CC-V-318 CS-P-2B OIL COOLER PCCW Locked Throttled Throttled Manual Valve, screens out as ESEL 1-CC-B20211 No OUTLET ISOLATION equipment.

993 1-CC-V-321 CS-P-2B OIL COOLER PCCW Closed Closed Manual Valve, screens out as ESEL 1-CC-B20211 No RELIEF VALVE equipment.

994 1-CC-V-1294 CS-P-2B OIL COOLER PCCW Closed Closed Manual Valve, screens out as ESEL 1-CC-B20211 No OUTLET DRAIN ISOLATION equipment.

995 1-CC-V-276 EAH-AC-2B COOLING COILS Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No PCCW INLET ISOLATION equipment.

996 1-CC-V-279 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No INLET ISOLATION equipment.

997 1-CC-V-292 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No OUTLET ISOLATION equipment.

998 1-CC-V-278 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No INLET ISOLATION equipment.

999 1-CC-V-291 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No OUTLET ISOLATION equipment.

1000 1-CC-V-277 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No INLET ISOLATION equipment.

1001 1-CC-V-290 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No OUTLET ISOLATION equipment.

1002 1-CC-V-284 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No INLET ISOLATION equipment.

1003 I-CC-V-287 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No OUTLET ISOLATION equipment.

1004 1-CC-V-283 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No INLET ISOLATION equipment.

1005 1-CC-V-286 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No OUTLET ISOLATION equipment.

1006 1-CC-V-282 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No INLET ISOLATION equipment.

1007 1-CC-V-285 EAH-AC-2B COOLING COIL PCCW Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20211 No OUTLET ISOLATION I equipment.

Revision I September 11, 2014 Page 53 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item# Normal State Desired State ESEL?

1008 I-CC-V-444 EAH-AC-2B COOLING COILS Locked Throttled Throttled Manual Valve, screens out as ESEL 1-CC-B20211 No PCCW OUTLET ISOLATION equipment.

1009 1-CC-V-442 EAH-AC-2B COOLING COILS Closed Closed Manual Valve, screens out as ESEL 1-CC-B20211 No PCCW RELIEF VALVE equipment.

1010 1-CC-V-447 WASTE BLDG LOOP SUPPLY Open Open Required to Close to protect Safety 1-CC-B20212 PAB, 7' elev., N. end of Yes ISOLATION AOV related cooling flowpath Demin Alley. 12' up 1011 1-CC-FY-447 CC-V-447 SOLENOID VALVE Energized/ Air Energized/ Air Located on AOV. Evaluated as part of 1- NHY-310895 sh. No aligned aligned CC-V-447 E88/10a 1012 1-CC-V-448 WASTE BLDG LOOP RETURN Open Open Required to Close to protect Safety 1-CC-B20212 PAB, 7' elev., N. end of Yes ISOLATION AOV related cooling flowpath Demin Alley, 12' up 1013 1-CC-FY-448 CC-V-448 SOLENOID VALVE Energized/ Air Energized/ Air Located on AOV. Evaluated as part of 1- NHY-310895 sh. No aligned aligned CC-V-448 E88/10a 1014 1-CC-V-1142 CS-E-5A PCCW INLET ISOLATION Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20212 No equipment.

1015 1-CC-V-1143 CS-E-5A PCCW OUTLET Locked Throttled Throttled Manual Valve, screens out as ESEL 1-CC-B20212 No ISOLATION equipment.

1016 1-CC-V-1168 CS-E-5A PCCW RELIEF VALVE Closed Closed Manual Valve, screens out as ESEL 1-CC-B20212 No equipment.

1017 1-CC-V-445 SF COOLING HX 15B PCCW Open Open Required to Close to protect Safety 1-CC-B20212 SF Bldg, 22' elev., SF HX Yes SUPPLY ISOLATION AOV related cooling flowpath area 1018 1-CC-FY-2040 CC-V-445 SOLENOID VALVE Energized/ Air Energized/ Air Located on AOV. Evaluated as part of 1. NHY-310895 sh. No aligned aligned CC-V-445 E88/12a 1019 I-SF-E-1SB SF COOLING HX 15B In service/ In Service SF Pool cooling function. SF 1-CC-B20212 No Standby components out of scope.

1020 1-CC-V-172 SF COOLING HX 15B PCCW Locked Throttled Throttled Manual Valve, screens out as ESEL 1-CC-B20212 No OUTLET ISOLATION equipment.

1021 1-CC-V-171 SF COOLING HX 15B PCCW Closed Closed Manual Valve, screens out as ESEL 1-CC-B20211 No OUTLET RELIEF VALVE equipment.

1022 1-CC-V-837 LOOP B PCCW TO CON'T Open Open Manual Valve, screens out as ESEL 1-CC-B20213 No MANUAL ISOLATION equipment.

1023 1-CC-V-840 LOOP B PCCW TO CON'T Closed Closed Manual Valve, screens out as ESEL 1-CC-B20213 No PENETRATION RELIEF VALVE equipment.

1024 1-CC-V-176 LOOP B PCCW TO CON'T Open Open Required to Close to protect Safety 1-CC-B20213 Con't, O' elev., SW Yes ISOLATION (IRC) AOV related cooling flowpath PCCW ppiping area 1025 1-CC-FY-176 CC-V-176 OPEN AND CLOSE De-energized/ Air De-energized/ Air Located on AOV. Evaluated as part of 1. NHY-310895 sh. No SOLENOIDS, 20-1 & 20-2 aligned aligned CC-V-276 E2U/4 1026 1-CC-V-836 LOOP B PCCW FROM CONT Open Open Manual Valve, screens out as ESEL 1-CC-B20213 No MANUAL ISOLATION equipment.

1027 1-CC-V-257 LOOP B PCCW FROM CON'T Open Open Required to Close to protect Safety 1-CC-B20213 PAB, -8' elev., PCCW Yes ISOLATION (ORC) AOV related cooling flowpath penetration area 1028 1-CC-FY-257 CC-V-257 OPEN AND CLOSE De-energized/ Air De-energized/ Air Located on AOV. Evaluated as part of 1. NHY-310895 sh. No SOLENOIDS, 20-1 & 20-2 aligned aligned CC-V-257 E2U/4 1029 1-CC-V-260 CBS-E-16B INLET ISOLATION Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20213 No equipment.

Revision I September 11, 2014 Page 54 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item# Normal State Desired State ESEL?

1030 1-CC-V-266 CBS-E-16B OUTLET ISOLATION Closed Closed Normally closed MOV. Isolates 1-CC-B20213 No MOV flowpath when on RHR cooling.

Screens out as ESEL eauioment 1031 1-CC-V-464 CBS-P-9B PCCW COOLING INLET Locked Open Open Normally aligned, manual Valve, 1-CC-B20213 No ISOLATION screens out as ESEL equipment.

1032 1-CC-V-467 CBS-P-9B PCCW COOLING Locked Throttled Throttled Normally aligned, manual Valve, 1-CC-B20213 No OUTLET ISOLATION screens out as ESEL equipment.

1033 1-CC-V-463 RH-P-8B PCCW COOLING INLET Locked Throttled Throttled Normally aligned, manual Valve, 1-CC-B20213 No ISOLATION screens out as ESEL equipment.

1034 1-CC-V-466 RH-P-8B PCCW COOLING OUTLET Locked Open Open Normally aligned, manual Valve, 1-CC-B20213 No ISOLATION screens out as ESEL equipment.

1035 1-CC-V-462 SI-P-6B PCCW COOLING INLET Locked Throttled Throttled Normally aligned, manual Valve, 1-CC-B20213 No ISOLATION screens out as ESEL equipment.

1036 1-CC-V-465 SI-P-6B PCCW COOLING OUTLET Locked Open Open Normally aligned, manual Valve, 1-CC-B20213 No ISOLATION screens out as ESEL equipment.

1037 1-CC-V-260 RH-E-9B INLET ISOLATION Locked Open Open Manual Valve, screens out as ESEL 1-CC-B20213 No equipment.

1038 1-CC-V-272 RH-E-9B OUTLET ISOLATION MOV Closed Closed Required for RHR cooling function 1-CC-B20213 Train B RHR vault, 3' Yes elev., above RHR HX 1039 1-RH-E-9B TRAIN B RHR HEAT EXCHANGER Standby Standby Required for RHR cooling function 1-CC-B20213 Train B RHR vault, -32' Yes 9B elev., RHR HX room 1040 1-CC-V-271 RH-E-9B PCCW RELIEF VALVE Closed Closed Manual Valve, screens out as ESEL 1-CC-B20213 No equipment.

1041 1-CC-V-322 SI-P-6B PCCW RELIEF VALVE Closed Closed Manual Valve, screens out as ESEL 1-CC-B20213 No equipment.

1042 1-CC-V-269 RH-P-8B PCCW RELIEF VALVE Closed Closed Manual Valve, screens out as ESEL 1-CC-B20213 No equipment.

1043 1-CC-V-262 CBS-P-9B PCCW RELIEF VALVE Closed Closed Manual Valve, screens out as ESEL 1-CC-B20213 No equipment.

1044 1-CC-V-264 CBS-E-16B PCCW RELIEF VALVE Closed Closed Manual Valve, screens out as ESEL 1-CC-B20213 No equipment.

1045 1-CC-V-1092 THERMAL BARRIER HX B SUPPLY Open Open Normally open MOV for thermal 1-CC-B20209 No ISOLATION MOV barrier cooling function. Screen out as ESEL eauipment, 1046 1-CC-V-1093 THERMAL BARRIER HX B SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-120209 No MANUAL ISOLATION equipment.

1047 1-CC-V-1095 THERMAL BARRIER HX B RETURN Open Open Normally open MOV for thermal 1-CC-B20209 No ISOLATION MOV barrier cooling function. Screen out as FSFL enuinment, 1048 1-CC-V-1094 THERMAL BARRIER HX B RETURN Locked Throttled Throttled Manual Valve, screens out as ESEL 1-CC-B20209 No MANUAL ISOLATION equipment.

1049 1-CC-V-1112 THERMAL BARRIER HX B RETURN Closed Closed Manual Valve, screens out as ESEL 1-CC-B20209 No

_PIPING RELIEF VALVE I _ equipment.

Revision 1 September 11, 2014 Page 55 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATnACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location include on Item # Normal State Desired State ESEL?

1050 1-CC-E-153A LOOP A THEMRAL BARRIER HX In service In service No power for cooling, not considered 1-CC-B20209 No 1051 1-CC-E-153B LOOP B THEMRAL BARRIER HX In service In service 1-CC-B20209 Con't, -26' elev., SW Yes 1052 1-CC-P-322B LOOP B THEMRAL BARRIER In service In service 1-CC-B20209 Con't, -26' elev., Inside Yes PUMP loop 2 entry 1053 1-CC-MM-762 THERMAL BARRIER HEAD PIPE Installed Installed Rupture discs screen out as ESEL 1-CC-B20209 No RUPTURE DISC equipment.

1054 1-CC-MM-763 THERMAL BARRIER HEAD PIPE Installed Installed Rupture discs screen out as ESEL 1-CC-B20209 No RUPTURE DISC equipment.

1055 1-CC-V-1072 THERMAL BARRIER PUMP B Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No SUCTION ISOLATION equipment.

1056 1-CC-V-1070 THERMAL BARRIER PUMP B Open/ Closed Open Manual Valve, screens out as ESEL 1-CC-B20209 No DISCHARGE CHECK VALVE equipment.

1057 1-CC-V-1069 THERMAL BARRIER PUMP B Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No DISCHARGE ISOLATION equipment.

1058 1-CC-V-1067 THERMAL BARRIER PUMP A Open/ Closed Closed Manual Valve, screens out as ESEL 1-CC-B20209 No DISCHARGE CHECK VALVE equipment.

1059 1-CC-V-1079 THERMAL BARRIER HX B INLET Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No ISOLATION equipment.

1060 1-CC-V-1087 THERMAL BARRIER HX B OUTLET Closed Closed Manual Valve, screens out as ESEL 1-CC-B20209 No PIPING RELIEF VALVE equipment.

1061 1-CC-V-1086 THERMAL BARRIER HX A INLET Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No ISOLATION equipment.

1062 1CC-V-1098 THERMAL BARRIER HX A OUTLET Closed Closed Manual Valve, screens out as ESEL 1-CC-B20209 No PIPING RELIEF VALVE equipment.

1063 1-CC-V-1099 THERMAL BARRIER HX A OUTLET Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No ISOLATION equipment.

1064 1-CC-V-236 RCP B THERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No ISOLATION equipment.

1065 1-CC-V-370 RCP BTHERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No CHECK VALVE equipment.

1066 1-CC-V-1156 RCP BTHERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No CHECK VALVE equipment.

1067 1-CC-V-408 RCP B THERMAL BARRIER Closed Closed Manual Valve, screens out as ESEL 1-CC-B20209 No OUTLET PIPING RELIEF VALVE equipment.

1068 1-CC-V-395 RCP B THERMAL BARRIER Open Open Normally de-energized open, screens 1-CC-B20209 No RETURN ISOLATION MOV out as ESEL equipment.

1069 1-CC-V-114 RCP C THERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No ISOLATION equipment.

1070 1-CC-V-357 RCP C THERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No

_CHECK VALVE Iequipment. II_ I 1071 1-CC-V-1155 RCP C THERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No

_CHECK VALVE equipment. I I I Revision 1 September 11, 2014 Page 56 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATrACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item# Normal State Desired State ESEL?

1072 1-CC-V-435 RCP C THERMAL BARRIER Closed Closed Manual Valve, screens out as ESEL 1-CC-B20209 No OUTLET PIPING RELIEF VALVE eauipment.

1073 1-CC-V-438 RCP C THERMAL BARRIER Open Open Normally de-energized open, screens 1-CC-B20209 No RETURN ISOLATION MOV out as ESEL equipment.

1074 1-CC-V-110 RCP ATHERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No ISOLATION equipment.

1075 1-CC-V-359 RCP A THERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No CHECK VALVE equipment.

1076 1-CC-V-1153 RCP A THERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No CHECK VALVE equipment.

1077 1-CC-V-326 RCP A THERMAL BARRIER Closed Closed Manual Valve, screens out as ESEL 1-CC-B20209 No OUTLET PIPING RELIEF VALVE equipment.

1078 1-CC-V-428 RCP ATHERMAL BARRIER Open Open Normally de-energized open, screens 1-CC-B20209 No RETURN ISOLATION MOV out as ESEL equipment.

1079 1-CC-V-230 RCP D THERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No ISOLATION equipment.

1080 1-CC-V-372 RCP DTHERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No CHECK VALVE equipment.

1081 1-CC-V-1154 RCP DTHERMAL BARRIER SUPPLY Open Open Manual Valve, screens out as ESEL 1-CC-B20209 No CHECK VALVE equipment.

1082 1-CC-V-242 RCP DTHERMAL BARRIER Closed Closed Manual Valve, screens out as ESEL 1-CC-B20209 No

_OUTLET PIPING RELIEF VALVE e uipment.

1083 1-CC-V-439 RCP D THERMAL BARRIER Open Open Normally de-energized open, screens 1-CC-B20209 No RETURN ISOLATION MOV out as ESEL equipment. _ _ _ _ _

FLEX ESEL - RCS Makeup (Support Systems/ Electrical) 1084 1-SW-P-11OB-BKR SW PUMP 110B BREAKER AT BUS Open Closed Evaluated as part of 1-EDE-SWG-6 NHY-301107 SH. AU6 No 6 <AU6>

1085 1-SW-P-11OB-BKR SW-P-110B BREAKER AT BUS 6 Reset Reset Evaluated as part of 1-EDE-SWG-6 NHY-301107 SH. AU6 No 86 <AU6> 86 LOCKOUT RELAY 1086 1-SW-P-11OB-BKR SW-P-110B FEEDER BREAKER installed/ Installed/ Evaluated as part of 1-EDE-SWG-6 NHY-301107 SH. No CFU 125V DC CLOSING FUSES (2) connected connected AU6b 1087 1-SW-P-11OB-BKR SW-P-110B FEEDER BREAKER Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6 NHY-301107 SH. No TFU 125V DC TRIPPING FUSES (2) connected connected AU6b 1088 1-SW-P-110B-BKR SW PUMP 110B BREAKER AUX De-energized Energized De-energizes when RMO reset after NHY-301107 SH. AU6 No RMO RELAY RMO completion of EPS stepping. Eval'd as part of DG-CP-80.

1089 1-SW-V-26-BKR SW-V-26 BREAKER AT MCC 641 Locked Open Open Normally De-energized, screens out as NHY-301107 SH. CQ8 No

<CQ8> ESEL equipment.

1090 1-SW-V-25-BKR SW-V-25 BREAKER AT MCC 641 Closed Closed Must Open to allow system flow. NHY-301107 SH. CQ7 No

<CQ7> Evaluated as part of 1-EDE-MCC-641 1091 1-SW-V-25-BKR- SW-V-25 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of l-EDE-MCC-641. NHY-301107 SH. C07 No

__ FU FUSE AT MCC 641 <CQ7> connected connected I Revision I September 11, 2014 Page 57 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item# Normal State Desired State ESEL?

1092 1-SW-V-25-BKR- SW-V-25 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-641. NHY-301107 SH. CQ7 No XFMR TRANSFORMER AT MCC 641

<C07>

1093 1-SW-V-25-BKR- SW-V-25 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-641. NHY-301107 SH. CQ7 No 42/0 STARTER AT MCC 641 <C07>

1094 1-SW-V-25-BKR- SW-V-25 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-641. NHY-301107 SH. CQ7 No 42/C STARTER AT MCC 641 <C07>

1095 1-SW-V-25-BKR- SW-V-25 AUX RELAY RI AT MCC De-energized Energized Required to energize to open valve. NHY-301107 SH. CQ7 No RI 641 <CQ7> Evaluated as part of 1-EDE-MCC-641 1096 1-SW-V-25-BKR- SW-V-25 ROTARY CONTACT Open Closed Required to open SW-V-27 for pump NHY-301107 SH. No SW-11 SWITCH 11 <VM8> protection. Evaluated as part of 1-EDE- CQ7b, CQ9a MCC-641, 1097 1-SW-V-27-BKR SW-V-27 BREAKER AT MCC 641 Closed Closed Must Open for pump protection. NHY-301107 SH. CQ9 No

<CQ9> Evaluated as part of 1-EDE-MCC-641 1098 1-SW-V-27-BKR- SW-V-27 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-641. NHY-301107 SH. CQ9 No FU FUSE AT MCC 641 <CQ9> connected connected 1099 1-SW-V-27-BKR- SW-V-27 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-641. NHY-301107 SH. C09 No XFMR TRANSFORMER AT MCC 641

<Cog>

1100 1-SW-V-27-BKR- SW-V-27 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-641. NHY-301107 SH. CQ9 No 42/() STARTER AT MCC 641 <CQ9>

1101 1-SW-V-27-BKR- SW-V-27 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-641. NHY-301107 SH. CQ9 No 42/Q STARTER AT MCC 641 <C09>

1102 1-SW-V-140-BKR SW-V-140 BREAKER AT MCC 641 Closed Closed Must Close for cooling function. NHY-301107 SH. C3E No

<C3E> Evaluated as part of 1-EDE-MCC-641 1103 1-SW-V-140-BKR- SW-V-140 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-641. NHY-301107 SH. C3E No

_FU FUSE AT MCC 641 <C3E> connected connected 1104 1-SW-V-140-BKR- SW-V-140 BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-641. NHY-301107 SH. C3E No XFMR CONTROL TRANSFORMER AT MCC 641 <C3E>

1105 1-SW-V-140-BKR- SW-V-140 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-641. NHY-301107 SH. C3E No 42/C STARTER AT MCC 641 <C3E>

1106 1-SW-V-140-BKR- SW-V-140 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of l-EDE-MCC-641. NHY-301107 SH. C3E No 42/C STARTER AT MCC 641 <C3E>

1107 1-SW-V-5-BKR SW-V-5 BREAKER AT MCC 612 Closed Closed Must Close to protect cooling flowpath. NHY-301107 SH. DA2 No

<DA2> Evaluated as part of 1-EDE-MCC-612 1108 1-SW-V-5-BKR-FU SW-V-5 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA2 No FUSE AT MCC 612 <DA2> connected connected Revision 1 September 11, 2014 Page 58 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

1109 1-SW-V-5-BKR- SW-V-5 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA2 No XFMR TRANSFORMER AT MCC 612

<DA2>

1110 1-SW-V-5-BKR- SW-V-5 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA2 No 42/0 STARTER AT MCC 612 <DA2>

1111 1-SW-V-5-BKR- SW-V-S DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA2 No 42/C STARTER AT MCC 612 <DA2>

1112 1-SW-V-76-BKR SW-V-76 BREAKER AT MCC 612 Closed Closed Must remain Closed to protect cooling NHY-301107 SH. BXO No

<BXO> flowpath. Evaluated as part of 1-EDE-MCC-612.

1113 1-SW-V-76-BKR- SW-V-76 BKR 2A CONTROL PWR Installed/ Installedl Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. BXO No FU FUSE AT MCC 612 <BXO> connected connected 1114 1-SW-V-76-BKR- SW-V-76 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. BXO No XFMR TRANSFORMER AT MCC 612

<BXO>

1115 1-SW-V-76-BKR- SW-V-76 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. BXO No 42/0 STARTER AT MCC 612 <BXO>

1116 1-SW-V-76-BKR- SW-V-76 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. BXO No 42/C STARTER AT MCC 612 <BXO>

1117 1-SW-V-17-BKR SW-V-17 BREAKER AT MCC 612 Closed Closed Must remain Open to protect cooling NHY-301107 SH. DA3 No

<DA3> flowpath. Evaluated as part of 1-EDE-MCC-612.

1118 1-SW-V-17-BKR- SW-V-17 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA3 No FU FUSE AT MCC 612 <DA3> connected connected 1119 1-SW-V-17-BKR- SW-V-17 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA3 No XFMR TRANSFORMER AT MCC 612

<DA4>

1120 1-SW-V-17-BKR- SW-V-17 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA3 No 42/0 STARTER AT MCC 612 <DA3>

1121 1-SW-V-17-BKR- SW-V-17 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA3 No 42/C STARTER AT MCC 612 <DA3>

1122 1-SW-V-19-BKR SW-V-19 BREAKER AT MCC 612 Closed Closed Must Close to protect cooling flowpath. NHY-301107 SH. DA4 No

<DA4> Evaluated as part of 1-EDE-MCC-612 1123 1-SW-V-19-BKR- SW-V-19 BKR 2A CONTROL PWR installed/ installed/ Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA4 No

_ FU FUSE AT MCC 612 <DA4> connected connected 1124 1-SW-V-19-BKR- SW-V-19 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA4 No XFMR TRANSFORMER AT MCC 612

<DA4>

1125 1-SW-V-19-BKR- SW-V-19 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA4 No 42/0 STARTER AT MCC 612 <DA4>

1126 1-SW-V-19-BKR- SW-V-19 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA4 No 42/C STARTER AT MCC 612 <DA4>

Revision 1 September 11, 2014 Page 59 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATI'ACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

1127 1-SW-V-19-BKR- SW-V-19 BREAKER AUX RELAY RI De-energized Energized Required to energize to close valve. NHY-301107 SH. DA4 No R1 AT MCC 615 <E3Q> Evaluated as part of 1-EDE-MCC-615 1128 1-SW-V-23-BKR SW-V-23 BREAKER AT MCC 612 Closed Closed Must Open to align cooling flowpath. NHY-301107 SH. DA5 No

<DA5> Evaluated as part of 1-EDE-MCC-612 1129 1-SW-V-23-BKR- SW-V-23 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA5 No FU FUSE AT MCC 612 <DAS> connected connected 1130 1-SW-V-23-BKR- SW-V-23 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA5 No XFMR TRANSFORMER AT MCC 612

<DAS>

1131 I-SW-V-23-BKR- SW-V-23 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA5 No 42/0 STARTER AT MCC 612 <DA5>

1132 1-SW-V-23-BKR- SW-V-23 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612. NHY-301107 SH. DA5 No 42/C STARTER AT MCC 612 <DAS>

1133 1-EDE-SWG UNIT SUB 64 PRIMARY FEEDER Closed Closed Evaluated as part of 1-EDE-SWG-6 NHY-310008 No AU7 BREAKER AT BUS 6 <AU7>

1134 1-EDE-SWG UNIT SUB 64 BKR AT BUS 6 Reset Reset Evaluated as part of 1-EDE-SWG-6 NHY-301107 SH. AU6 No AU7-86 <AU7> 86 LOCKOUT RELAY 1135 1-EDE-US-64 UNIT SUB 64 Energized Energized NHY-301704 Cooling Twr, Elec Rm Yes 1136 1-EDE-X-5-H UNIT SUB 64 4160-480V Energized Energized Evaluated as part of 1-EDE-US-64 NHY-301704 No TRANSFORMER 1137 1-EDE-US UNIT SUB 64 SECONDARY Closed Closed Evaluated as part of 1-EDE-US-64 NHY-301704 No AW2 FEEDER BKR AT US-64 <AW2>

1138 1-EDE-US MCC-641 FEEDER BREAKER AT US Closed Closed Evaluated as part of 1-EDE-US-64 NHY-301704 No AW6 64 <AW6>

1139 1-EDE-MCC-641 MOTOR CONTROL CENTER MCC- Energized Energized NHY-301706 Cooling Tower, 22' Yes 641 elev., Tain B Elec Rm 1140 1-SW-FN-51B- CT FAN 51B BREAKER AT US-64 Open Open Must Close to support cooling function. NHY-301107 SH. No BKR <AW4> Evaluated as part of 1-EDE-US-64 AW4 1141 1-SW-FN-51B- CT FAN 51B BREAKER CLOSING Installed/ installed/ Evaluated as part of 1-EDE-US-64 NHY-301107 SH. No

_BKR-CFU FUSES (21 AT US-64 <AW4> connected connected AW4b 1142 1-SW-FN-51B- CT FAN 51B BREAKER TRIPPING Installed/ Installed/ Evaluated as part of 1-EDE-US-64 NHY-301107 SH. No BKR-TFU FUSES (2) AT US-64 <AW4> connected connected AW4b 1143 1-SW-FN-51B- CT FAN 51B BREAKER AUX RELAY De-energized Energized Evaluated as part of 1-DG-CP-80. NHY-301107 SH. No BKR-RMO RMO CONTACT 7/8 AW4b 1144 2-SW-FN-51B- UNIT 2 CT FAN 51B BREAKER AT Open Open Must Close to support cooling function. NHY-301107 SH. No BKR US-64 <AW5> Evaluated as part of 1-EDE-US-64 AW5 1145 2-SW-FN-51B- UNIT 2 CT FAN 51B BREAKER Installed/ Installed/ Evaluated as part of 1-EDE-US-64 NHY-301107 SH. No BKR-CFU CLOSING FUSES (2) AT US-64 connected connected AW5

_<AW4> I Revision 1 September 11, 2014 Page 60 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATIACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

1146 2-SW-FN-51B- UNIT 2 CT FAN 51B BREAKER installed/ Installed/ Evaluated as part of 1-EDE-US-64 NHY-301107 SH. No BKR-TFU TRIPPING FUSES (2) AT US-64 connected connected AW5

<AW4>

1147 2-SW-FN-51B- UNIT 2 CT FAN 51B BREAKER AUX De-energized Energized Evaluated as part of 1-DG-CP-80. NHY-301107 SH. No BKR-RMO RELAY RMO CONTACT 7/8 AW5 1148 1-CC-P-11B-BKR PCCW PUMP 11B BREAKER AT Open Closed Evaluated as part of 1-EDE-SWG-6 NHY-310895 SH. A78 No BUS 6 <A78>

1149 1-CC-P-11B-BKR- CC-P-11B BREAKER AT BUS 6 Reset Reset Evaluated as part of 1-EDE-SWG-6 NHY-301107 SH. A78 No 86 <A78> 86 LOCKOUT RELAY 1150 1-CC-P-11B-BKR- CC-P-11B FEEDER BREAKER 125V Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6 NHY-310895 SH. No CFU DC CLOSING FUSES (2) connected connected A78b 1151 1-CC-P-11B-BKR- CC-P-11B FEEDER BREAKER 125V Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6 NHY-310895 SH. No TFU DC TRIPPING FUSES (2) connected connected A78b 1152 1-CC-P-11B-BKR- CC-P-11B BREAKER AUX RELAY De-energized Energized De-energizes when RMO reset after NHY-310895 SH. No RMO RMO completion of EPS stepping. Evaluated A78b as oart of 1-DG-CP-8.,

1153 1-CC-P-11B-BKR- CC-P-11B/D HIGH TEMP De-energized/ De-energized/ Relay contacts must remain closed to NHY-310895 SH. No TDRX TRIPPING AUX RELAY TDRX AT Closed Closed allow pump to start. Evaluated as part A78b, A79b, E50/12 MCC-615 <E3D> of 1-EDE-MCC-615.

1154 1-CC-P-11D-BKR PCCW PUMP 11D BREAKER AT Open Closed Takes credit for CC-P-11B, not listed. NHY-310895 SH. A79 No BUS 6 <A78>

1155 1-CC-P-11B-BKR- CC-P-11B BREAKER AT BUS 6 Reset Reset Takes credit for CC-P-11B, not listed. NHY-301107 SH. A78 No 86 <A78> 86 LOCKOUT RELAY 1156 1-CC-P-11D-BKR- CC-P-11D FEEDER BREAKER 125V Installed/ Installed/ Takes credit for CC-P-11B, not listed. NHY-310895 SH. No CFU DC CLOSING FUSES (2) connected connected A79b 1157 1-CC-P-11D-BKR- CC-P-11D FEEDER BREAKER 125V Installed/ Installed/ Takes credit for CC-P-11B, not listed. NHY-310895 SH. No TFU DC TRIPPING FUSES (2) connected connected A79b 1158 1-CC-P-11D-BKR- CC-P-11D BREAKER AUX RELAY De-energized Energized Takes credit for CC-P-11B, not listed. NHY-310895 SH. No RMO RMO A79b 1159 1-CC-T2271-1/2- CC TEMP CONTROL CIRCUIT AUX Energized Energized Relay must remain energized to allow NHY-310895 SH. No RI RELAY R1 AT EDE-CP-249 <GNO> MCB control of AOVs. Evaluated as part E2U/3 of ,-EDE-CP-249.

1160 1-EDE-PP-113-B- CC-V-986 & 1301 SOLENOID On On Required to de-energize to fail closed NHY-310895 SH. No CK9 POWER AOVs to protect cooling flowpath. E2U/9 Eval'd as part of 1-EDE-PP-113B.

1161 1-EDE-PP-112-B- CC-V-447 &448 SOLENOID On On Required to de-energize to fail closed NHY-310895 SH. No CK10 POWER AOVs to protect cooling flowpath. E88/l0a Eval'd as part of 1-EDE-PP-112B 1162 1-CC-V-266-BKR CBS HX COOLING MOV AT MCC- On On Required to remain closed to protect NHY-310895 SH. BY9 No 612 <BY9> cooling flowpath for RHR. Evaluated as part of 1-EDE-MCC-612.

Revision 1 September 11, 2014 Page 61 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Equi I Normal State Desired State ESEL?

1163 1-CC-V-266-BKR- CC-V-266 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612 NHY-310895 SH. BY9 No FU FUSE AT MCC 612 <BY9> connected connected 1164 1-CC-V-266-BKR- CC-V-266 BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-612 NHY-310895 SH. BY9 No XFMR CONTROL TRANSFORMER AT MCC 612 <BY9>

1165 1-CC-V-266-BKR- CC-V-266 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310895 SH. BY9 No 42/0 STARTER AT MCC 612 <BY9>

1166 1-CC-V-266-BKR- CC-V-266 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-612 NHY-310895 SH. BY9 No 42/C STARTER AT MCC 612 <BY9>

1167 1-CC-V-272-BKR RHR HX COOLING MOV AT MCC- On On Required to Open for cooling function NHY-310895 SH. BY8 No 612 <BY8> for RHR. Evaluated as part of 1-EDE-MCC-612 1168 1-CC-V-272-BKR- CC-V-272 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-612 NHY-310895 SH. BY8 No FU FUSE AT MCC 612 <BY8> connected connected 1169 1-CC-V-272-BKR- CC-V-272 BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-612 NHY-310895 SH. BY8 No XFMR CONTROL TRANSFORMER AT MCC 612 <BY8>

1170 1-CC-V-272-BKR- CC-V-272 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of l-EDE-MCC-612 NHY-310895 SH. BY8 No 42/D STARTER AT MCC 612 <BY8>

1171 1-CC-V-272-BKR- CC-V-272 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of I-EDE-MCC-612 NHY-310895 SH. BY8 No 42/C STARTER AT MCC 612 <BY8>

1172 1-CC-V-272-BKR- CC-V-272 BREAKER AUX RELAY De-energized De-energized Required to energize to close valve, NHY-310895 SH. BY8 No R1 R1 AT MCC 612 <BY8> Evaluated as part of 1-EDE-MCC-612 1173 1-EDE-PP-113-B- CC-V-176 & 257 SOLENOID On On Required to energize close solenoids to NHY-310895 SH. No CK4 POWER isolate containment. Evaluated as part E2U/4 of I-EDE-PP-113B 1174 1-EDE-MM-580 CC-V-176 & 257 POWER SUPPLY Installed/ installed/ Evaluated as part of 1-EDE-MM-580 NHY-310895 SH. No FU15 & 16 FUSES FU15 & FU16 AT EDE-MM- connected connected E2U/4 SRO <E4C>

1175 1-CC-V-1092-BKR THERM BARRRIER HX COOLING On On Required to remain Open for cooling NHY-310895 SH. B4P No MOV AT MCC-615 <B4P> function for RCP seals. Evaluated as part of 1-EDE-MCC-615 1176 1-CC-V-1092-BKR- CC-V-1092 BKR 2A CONTROL Installed/ installed/ Evaluated as part of 1-EDE-MCC-615 NHY-310895 SH. B4P No FU _ PWR FUSE AT MCC 615 <B4P> connected connected 1177 1-CC-V-1092-BKR- CC-V-1092 BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-615 NHY-310895 SH. B4P No XFMR CONTROL TRANSFORMER AT MCC 615 <B4P>

1178 1-CC-V-1092-BKR- CC-V-1092 DEV. 42-1/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-615 NHY-310895 SH. B4P No 42-1/0 STARTER AT MCC 615 <B4P>

Revision 1 September 11, 2014 Page 62 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location include on Item # Normal State Desired State ESEL?

1179 1-CC-V-1092-BKR- CC-V-1092 DEV. 42-1/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-615 NHY-310895 SH. B4P No 42-1/C STARTER AT MCC 615 <B4P>

1180 1-CC-V-1095-BKR THERM BARRRIER HX COOLING On On Required to remain Open for cooling NHY-310895 SH. B4N No MOV AT MCC-615 <B4N> function for RCP seals. Evaluated as part of 1-EDE-MCC-615 1181 1-CC-V-1095-BKR- CC-V-1095 BKR 2A CONTROL Installed/ Installed/ Evaluated as part of 1-EDE-MCC-615 NHY-310895 SH. B4N No FU PWR FUSE AT MCC 615 <B4N> connected connected 1182 1-CC-V-1095-BKR- CC-V-1095 BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-615 NHY-310895 SH. B4N No XFMR CONTROL TRANSFORMER AT MCC 615 <B4N>

1183 1-CC-V-1095-BKR- CC-V-1095 DEV. 42-1/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-615 NHY-310895 SH. B4N No 42-1/0 STARTER AT MCC 615 <B4N>

1184 1-CC-V-1095-BKR- CC-V-1095 DEV. 42-1/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-615 NHY-310895 SH. B4N No 42-1/C STARTER AT MCC 615 <B4N>

1185 1-CC-V-395-BKR RCP B THERM BARRIER ISOL. Off Off Normal de-energized, screens out as NHY-310895 SH. BY5 No MOV AT MCC-612 <BYS> ESEL equipment.

1186 1-CC-V-438-BKR RCP C THERM BARRIER ISOL. Off Off Normal de-energized, screens out as NHY-310895 SH. BY6 No MOV AT MCC-612 <BY6> ESEL equipment.

1187 1-CC-V-428-BKR RCP A THERM BARRIER ISOL. Off Off Normal de-energized, screens out as NHY-310895 SH. BY4 No I MOV AT MCC-612 <BY4> ESEL equipment.

1188 1-CC-V-439-BKR RCP DTHERM BARRIER ISOL. Off Off Normal de-energized, screens out as NHY-310895 SH. BY7 No MOV AT MCC-612 <BY7> ESEL equipment.

FLEX ESEL - Spent Fuel Pool Cooling (Mechanical) 1189 1-CBS-V-35 RWST EMERGENCY MAKEUP TO Closed Closed Manual Valve, screens out as ESEL CBS-B20233 No SF POOL ISOLATION equipment.

1190 1-CBS-V-61 RWST EMERGENCY MAKEUP TO Closed Closed Manual Valve, screens out as ESEL SF-B20482 No SF POOL ISOLATION equipment.

1191 1-SF-F-227 SF POOL COOLING PUMP Installed/ installed/ SFP components not applicable to ESEL SF-B20482 No SUCTION STRAINER connected connected list per EPRI guidelines.

1192 1-SF-V-1 SF POOL COOLING PUMP B Open Open SFP components not applicable to ESEL SF-B20482 No SUCTION ISOLATION list per EPRI guidelines.

1193 1-SF-V-3 SF POOL COOLING PUMP B Open/ Closed Open SFP components not applicable to ESEL SF-B20482 No DISCHARGE CHECK VALVE list per EPRI guidelines.

1194 1-SF-V-4 SF POOL COOLING PUMP B Open/ Closed Open SFP components not applicable to ESEL SF-B20482 No DSICHARGE ISOLATION list per EPRI guidelines.

1195 1-SF-P-lOB SF POOL COOLING PUMP B Running/In Running SFP components not applicable to ESEL SF-B20482 No Standby list per EPRI guidelines.

1196 1-SF-V-68 SF POOL HX 15C CROSSCONNECT Closed Closed SFP components not applicable to ESEL SF-B20482 No ISOLATION I list per EPRI guidelines. I Revision 1 September 11, 2014 Page 63 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equipment Equipment Notes Reference Plant Location Include on Item # Equip ID Description Normal State Desired State ESEL?

1197 1-SF-V-14 SF COOLING CROSSCONNECT Closed Closed SFP components not applicable to ESEL SF-B20482 No ISOLATION TO PURIFICATION list per EPRI guidelines.

1198 1-SF-V-8 SF POOL COOLING PUMP A Open/ Closed Closed SFP components not applicable to ESEL SF-B20482 No I DSICHARGE ISOLATION list per EPRI euidelines.

1199 1-SF-V-198 SF POOL COOLING PUMP C Closed Closed SFP components not applicable to ESEL SF-B20482 No DSICHARGE ISOLATION list per EPRI guidelines.

1200 1-SF-V-73 SF POOL COOLING HX 15B Open/ Closed Closed SFP components not applicable to ESEL SF-B20482 No OUTLET ISOLATION list per EPRI guidelines.

1201 1-SF-V-73 SF POOL COOLING HX 15C Closed Closed SFP components not applicable to ESEL SF-B20482 No OUTLET ISOLATION list per EPRI guidelines.

1202 1-SF-V-11 SF POOL COOLING HX 15A Open/ Closed Open SFP components not applicable to ESEL SF-B20482 No OUTLET ISOLATION list per EPRI guidelines.

1203 1-SF-V-45 SF POOL COOLING HX ISA RELIEF Closed Closed SFP components not applicable to ESEL SF-B20482 No VALVE _loist oer EPRI auidelines.

FLEX ESEL - Residual Heat Removal (Mechanical) 1204 1-RH-P-8B TRAIN B RHR PUMP 8B Standby Standby RH-B20663 Train B RHR vault, -61' Yes 1205 1-RH-E-188B TRAIN B RHR PUMP SEAL WATER In Service In Service Evaluated as part of RH-P-8B RH-B20663 No HX 1206 1-CBS-V-5 RWST OUTLET TO RHR/ CBS Open Open Required to Close to align RHR pump to CBS-B20233 Train B RHR vault, -18' Yes SUCTION ISOLATION MOV RCS Hot legs elev., One fli ht down 1207 1-CBS-V-24 RWST SUPPLY TO RHR PUMP Locked Open Open Manual Valve, screens out as ESEL CBS-B20233 No SUCTION ISOLATION eauipment.

1208 1-CBS-V-150 RWST SUPPLY TO RHR PUMP Closed Closed Manual Valve, screens out as ESEL CBS-B20233 No SUCTION RELIEF VALVE equipment.

1209 1-CBS-V-146 RWST SUPPLY TO RHR PUMP Open Open Manual Valve, screens out as ESEL CBS-B20233 No SUCTION CHECK VALVE equipment.

1210 1-CBS-V-56 RWST SUPPLY TO RHR PUMP Open Open Manual Valve, screens out as ESEL CBS-B20233 No SUCTION CHECK VALVE equipment.

1211 1-CBS-V-148 CONT' SUMP SUPPLY TO RHR Closed Closed Manual Valve, screens out as ESEL CBS-B20233 No PUMP SUCTION CHECK VALVE equipment.

1212 1-CBS-V-25 CONT' SUMP SUPPLY TO RHR Closed Closed Manual Valve, screens out as ESEL CBS-B20233 No PUMP SUCTION CHECK VALVE equipment.

1213 1-RH-V-53 LOOP 4 HOT LEG RECIRC SUPPLY Closed Closed Manual Valve, screens out as ESEL RC-B20844 No CHECK VALVE equioment.

1214 1-RC-V-87 LOOP 4 HOT LEG SUPPLY TO RHR Closed Closed Required to Open for RHR operation. RC-B20844 No SUCTION MOV Normally de-energized closed MOV, screens out as ESEL equip.

1215 1-RC-V-88 LOOP 4 HOT LEG SUPPLY TO RHR Closed Closed Required to Open for RHR operation. RC-B20844 No SUCTION MOV Normally de-energized closed MOV, screens out as ESEL equip.

Revision 1 September 11, 2014 Page 64 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

1216 1-RC-V-361 LOOP 4 HOT LEG SUPPLY TO RHR Closed Closed Manual Valve, screens out as ESEL RC-B20844 No SUCTION RELIEF VALVE eauipment.

1217 1-RC-V-89 LOOP 4 HOT LEG SUPPLY TO RHR Closed Closed Manual Valve, screens out as ESEL RC-B20844 No SUCTION RELIEF VALVE equipment.

1218 1-CS-V-829 TRAIN B RHR SLIPSTREAM Closed Closed Manual Valve, screens out as ESEL RH-B20663 No RETURN ISOLATION equipment.

1219 1-RH-FCV-611 TRAIN B RHR MINIFLOW Open Open Provides pump protection RH-B20663 Train B RHR vault, -32' Yes ISOLATION MOV elev., RHR HX room 1220 1-RH-FE-611 TRAIN B RHR MINIFLOW FLOW In Service In Service Provides pump protection RH-B20663 Train B RHR vault, -61' Yes ELEMENT elev., RHR pump room 1221 1-RH-FIS-611 TRAIN B RHR MINIFLOW FLOW In Service In Service Provides pump protection RH-B20663 Train B RHR vault, -61' Yes TRANSMITTER elev.. CBS pump room 1222 1-RH-FCV-619 TRAIN B RHR FLOW CONTROL In Service In Service Provides RHR temperature control. RH-B20663 No AOV Normally de-energized with AOV failed closed for full HX flow 1223 1-RH-FY-619-1 TRAIN B RHR FLOW CONTROL In Service In Service Provides RHR temperature control. NHY-310887 sh. No AOV SOLENOID Normally de-energized with AOV failed E88/2 closed for full HX flow 1224 1-RH-HCV-607 TRAIN B RHR TEMP CONTROL In Service In Service Provides RHR temperature control. RH-B20663 No AOV Normally de-energized with AOV failed onen for full HX flow 1225 1-RH-HY-607-1 TRAIN B RHR TEMP CONTROL In Service In Service Provides RHR temperature control. NHY-310887 sh. No AOV SOLENOID Normally de-energized with AOV failed E88/2

_ _oen for full HX flow 1226 1-RH-V-19 TRAIN B RHR LETDOWN SUPPLY Closed Closed Manual Valve, screens out as ESEL RH-B20663 No ISOLATION equipment.

1227 1-RH-V-36 TRAIN B RHR DISCHARGE TO SI/ Closed Closed Normally closed MOV. Screens out as RH-B20663 No CHARGING PUMPS MOV ESEL equipment.

1228 1-RH-V-45 TRAIN B RHR HX INLET Locked Open Open Manual Valve, screens out as ESEL RH-B20663 No ISOLATION eauipment.

1229 1-RH-V-21 TRAIN B RHR DISCHARGE Open Open Required to Close for RHR operation & RH-B20663 Train B RHR vault, -18' Yes CROSSCONNECT MOV lineup elev., one flight down 1230 1-RH-V-26 TRAIN B RHR DISCHARGE TO Open Open Normally Open/ de-energized, screens RH-B20663 No LOOP 3 & 4 MOV out as ESEL equipment 1231 1-RH-V-25 TRAIN B RHR DISCHARGE TO Closed Closed Manual Valve, screens out as ESEL RH-B20663 No LOOPS RELIEF VALVE eauipment.

1232 1-RH-V-27 RHR B DISCHARGE TO SI TEST Closed Closed Normally closed AOV. Screens out as RH-B20663 No HEADER AOV ESEL equipment.

1233 1-RH-FY-2464 RHR B DISCHARGE TO SI TEST De-energized/ air De-energized/ air Normally closed AOV. Screens out as NHY-310887 sh. No HEADER AOV SOLENOID vented vented ESEL equipment. E87/2 1234 1-RH-V-29 TRAIN B RHR DISCHARGE TO Closed Closed Manual Valve, screens out as ESEL RH-B20663 No LOOP 3 CHECK VALVE equipment. I_1__

1235 1-RH-V-63 TRAIN B RHR DISCHARGE TO Locked Open Open Manual Valve, screens out as ESEL RH-B20663 No LOOP 3 MANUAL ISOLATION equipment. IIIE_

Revision 1 September 11, 2014 Page 65 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

1236 1-SI-V-126 SI DISCHARGE TO LOOP 3 COLD Closed Closed Manual Valve, screens out as ESEL RC-B20843 No LEG CHECK VALVE equipment.

1237 1-RH-V-3D TRAIN B RHR DISCHARGE TO Closed Closed Manual Valve, screens out as ESEL RH-B20663 No I LOOP 4 CHECK VALVE equipment.

1238 1-RH-V-65 TRAIN B RHR DISCHARGE TO Locked Open Open Manual Valve, screens out as ESEL RH-B20663 No LOOP 4 MANUAL ISOLATION eguipment.

1239 1-SI-V-130 SI DISCHARGE TO LOOP 4 COLD Closed Closed Manual Valve, screens out as ESEL RC-B20844 No LEG CHECK VALVE euipment.

FLEX ESEL - Residual Heat Removal (Electrical) 1240 1-RH-P-8B-BKR RH PUMP 8B BREAKER AT BUS 6 Open Closed Evaluated as part of 1-EDE-SWG-6 NHY-310887 SH. A77 No

<A77>

1241 1-RH-P-8B-BKR- RH-P-8B BREAKER AT BUS 6 Reset Reset Evaluated as part of 1-EDE-SWG-6 NHY-310891 sh. A82 No 86 <A77> 86 LOCKOUT RELAY 1242 1-RH-P-8B-BKR- RH-P-8B FEEDER BREAKER 125V Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6 NHY-310887 SH. No CFU DC CLOSING FUSES (21 connected connected A77b 1243 1-RH-P-8B-BKR- RH-P-8B FEEDER BREAKER 125V Installed/ Installed/ Evaluated as part of 1-EDE-SWG-6 NHY-310887 SH. No TFU DC TRIPPING FUSES (2) connected connected A77b 1244 1-RH-P-8B-BKR- RH-P-8B BREAKER AUX RELAY De-energized Energized De-energizes when RMO reset after NHY-310887 SH. A77 No RMO RMO completion of EPS stepping. Eval'd as

_art of DG-CP-8O.

1245 1-CBS-V-5-BKR RWST OUTLET MOV AT MCC-621 On On Required to Close to protect flowpath NHY-310900 SH. B51 No

<B51> for RHR from loops. Eval'd as part of 1-FDE-MCC-621 1246 1-CBS-V-5-BKR- CBS-V-5 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-621 NHY-310900 SH. B51 No FU FUSE AT MCC 621 <B51> connected connected 1247 1-CBS-V-5-BKR- CBS-V-5 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-621 NHY-310900 SH. B51 No XFMR TRANSFORMER AT MCC 621

<Bs1>

1248 1-CBS-V-5-BKR- CBS-V-5 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310900 SH. B51 No 42/0 STARTER AT MCC 621 <B51>

1249 1-CBS-V-5-BKR- CBS-V-5 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310900 SH. B51 No 42/C STARTER AT MCC 621 <B51>

1250 1-RH-FCV-611- RH PUMP 8B MINIFLOW MOV AT On On Required to Close to protect flowpath NHY-310887 SH. B63 No BKR MCC-621 <B63> for RHR from loops. Eval'd as part of 1-EDE-MCC-621 1251 1-RH-FCV-611- RH-FCV-611 BKR 2A CONTROL Installed/ Installed/ Evaluated as part of 1-EDE-MCC-621 NHY-310887 SH. B63 No BKR-FU PWR FUSE AT MCC 621 <B63> connected connected 1252 1-RH-FCV-611- RH-FCV-611 BKR 480-120V Energized Energized Evaluated as part of 1-EDE-MCC-621 NHY-310887 SH. B63 No BKR-XFMR CONTROL TRANSFORMER AT MCC 621 <B63>

1253 1-RH-FCV-611- RH-FCV-611 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310887 SH. B63 No BKR-42/O STARTER AT MCC 621 <B63>

Revision 1 September 11, 2014 Page 66 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT 1 FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Notes Reference Plant Location Include on Item # Normal State Desired State ESEL?

1254 1-RH-FCV-611- RH-FCV-611 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310887 SH. B63 No BKR-42/C STARTER AT MCC 621 <B63>

1255 1-RH-FIS-611- RH-FCV-611 LOW FLOW Closed Closed Evaluated as part of 1-RH-FIS-611 NHY-310887 SH. B63 No LOW-FLOW CONTACTS AT FIS-611 1256 1-RH-FIS-611- RH-FCV-611 HIGH FLOW Open Open Evaluated as part of 1-RH-FIS-611 NHY-310887 SH. B63 No HIGH-FLOW CONTACTS AT FIS-611 1257 1-RH-V-36-BKR RH PUMP 8B TO SI/ CHG MOV AT On On Required to remain Closed to protect NHY-310887 SH. B66 No MCC-621 <B66> flowpath for RHR. Evaluated as part of 1-FDF-M CC-62*1 1258 1-RH-V-36-BKR- RH-V-36 BKR 2A CONTROL PWR installed/ installed/ Evaluated as part of 1-EDE-MCC-621 NHY-310887 SH. B66 No FU FUSE AT MCC 621 <B66> connected connected 1259 1-RH-V-36-BKR- RH-V-36 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-621 NHY-310887 SH. B66 No XFMR TRANSFORMER AT MCC 621

<866>

1260 1-RH-V-36-BKR- RH-V-36 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of l-EDE-MCC-621 NHY-310887 SH. B66 No 42/0 STARTER AT MCC 621 <B66>

1261 1-RH-V-36-BKR- RH-V-36 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310887 SH. B66 No 42/C STARTER AT MCC 621 <B66>

1262 1-RH-V-21-BKR RH TRAIN B CROSSCONNECT On On Required to Close when placing RHR in NHY-310887 SH. B64 No MOV AT MCC-621 <864> service. Evaluated as part of 1-EDE-

__M ICC(-621 1263 1-RH-V-21-BKR- RH-V-21 BKR 2A CONTROL PWR Installed/ Installed/ Evaluated as part of I-EDE-MCC-621 NHY-310887 SH. B64 No FU FUSE AT MCC 621 <B64> connected connected 1264 1-RH-V-21-BKR- RH-V-21 BKR 480-120V CONTROL Energized Energized Evaluatedas part of 1-EDE-MCC-621 NHY-310887 SH. B64 No XFMR TRANSFORMER AT MCC 621

<B64>

1265 1-RH-V-21-BKR- RH-V-21 DEV. 42/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310887 SH. B64 No 42/0 STARTER AT MCC 621 <B64>

1266 1-RH-V-21-BKR- RH-V-21 DEV. 42/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310887 SH. B64 No 42/C STARTER AT MCC 621 <B64>

1267 1-RH-V-26-BKR RH TRAIN B DISCHARGE MOV AT On On Normally de-energized. Open, screens NHY-310887 SH. B65 No MCC-622 <B65> out as ESEL equipment.

1268 1-RC-V-87-BKR1 RC-V-87 MOV PRIMARY BREAKER Locked Off Off Required to Open valve when placing NHY-310882 SH. B61 No AT MCC-621 <B61> RHR in service from Loops. Eval'd as

_art of 1-EDE-MCC-621 1269 1-RC-V-87-BKR2 RC-V-87 MOV SECONDARY Locked Off Off Required to Open valve when placing NHY-310882 SH. B61 No BREAKER AT MCC-621 <B61> RHR in service from Loops. Eval'd as Ioartof 1-EDE-MCC-621 1270 1-RC-V-87-BKR- RC-V-87 BKR 3A CONTROL PWR Installed/ Installed/ Evaluated as part of 1-EDE-MCC-621 NHY-310882 SH. B61 No FU FUSE AT MCC 621 <B61> connected connected 1271 1-RC-V-87-BKR- RC-V-87 BKR 480-120V CONTROL Energized Energized Evaluated as part of 1-EDE-MCC-621 NHY-310882 SH. B61 No XFMR TRANSFORMER AT MCC 621

<861>

Revision 1 September 11, 2014 Page 67 of 68

Selection of the Seabrook Station Expedited Seismic Equipment List (ESEL) for the Augmented Approach to Recommendation 2.1: Seismic ATTACHMENT I FLEX Expedited Seismic Evaluation List (ESEL)

ESEL Equip ID Description Equipment Equipment Include on Item H Normal State Desired State Notes Reference Plant Location ESEL?

1272 1-RC-V-87-BKR-42 RC-V-87 DEV. 42-1/0 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310882 SH. B61 No 110 STARTER AT MCC 621 <B61>

1273 1-RC-V-87-BKR-42 RC-V-87 DEV. 42-1/C MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310882 SH. B61 No 1/C STARTER AT MCC 621 <B61>

1274 1-RC-V-87-BKR-42 RC-V-87 DEV. 42-2 MOTOR De-energized De-energized Evaluated as part of 1-EDE-MCC-621 NHY-310882 SH. B61 No 2 STARTER AT MCC 621 <B61>

1275 1-RH-ZS-2466B RH-V-36 ROTOR CONTACT 13 Contact closed Contact closed Evaluated as part of 1-RH-V-36 NHY-310882 SH. B61 No 1276 1-RC-V-88-BKR1 RC-V-88 MOV PRIMARY BREAKER Locked Off Off No power to Bus 5,not included. NHY-310882 SH. B62 No AT MCC-521 <B62>

1277 1-RC-V-88-BKR2 RC-V-88 MOV SECONDARY Locked Off Off No power to Bus 5, not included. NHY-310882 SH. 862 No BREAKER AT MCC-521 <B62>

1278 1-RC-V-88-BKR- RC-V-88 BKR 3A CONTROL PWR Installed/ Installed/ No power to Bus 5, not included. NHY-310882 SH. 862 No FU FUSE AT MCC 521 <B62> connected connected 1279 1-RC-V-88-BKR- RC-V-88 BKR 480-120V CONTROL Energized Energized No power to Bus 5, not included. NHY-310882 SH. B62 No XFMR- TRANSFORMER AT MCC 521 1280 1-RC-V-88.BKR-42 RC-V-88 DEV. 42-1/0 MOTOR De-energized De-energized No power to Bus 5, not included. NHY-310882 SH. B62 No 1/0 STARTER AT MCC 521 <B62>

1281 1-RC-V-88-BKR-42 RC-V-88 DEV. 42-1/C MOTOR De-energized De-energized No power to Bus 5, not included. NHY-310882 SH. 862 No

- /C STARTER AT MCC 521 <B62>

1282 1-RC-V-88-BKR-42 RC-V-88 DEV. 42-2 MOTOR De-energized De-energized No power to Bus 5, not included. NHY-310882 SH. B62 No 2 STARTER AT MCC 521 <B62>

1283 1-RH-ZS-2466A RH-V-36 LIMIT SWITCH CONTACT Contact closed Contact closed No power to Bus 5, not included. NHY-310882 SH. B62 No C/D 1284 1-EDE-PP-112-B- TRAIN BTEMP/ FLOW AOV On On Evaluated as part of EDE-PP-112B. NHY-310887 SH. No CK2 CONTROL POWER AT EDE-PP- E88/2 111_2B<E8R>. CIRCUIT//2 1285 1-EDE-MM-580- TRAIN BTEMP/ FLOW AOV Installed/ Installed/ Evaluated as part of EDE-MM-580.. NHY-310887 SH. No FUl & 2 CONTROL FUSE FU1 & FU2 AT connected connected E88/2 I__________ IDE-MM-580 <E4C> I I 1 _1 PREPARED BY: Steve Howard Karl Axelson 4C)Date

_Z.e' -/'*

Date REVIEWED BY: Edward Antosz /o-;.g -/H V Date Revision 1 September 11, 2014 Page 68 of 68

Attachment 2 ESEP HCLPF Values and Failure Modes Tabulation

Attachment 2 ESEP HCLPF Values and Failure Modes Tabulation Equip ID HCLPF Evaluation Notes 1-DG-CP-80 > RLGM Screened / Anchorage 1-EDE-B-1-A > RLGM Screened / Anchorage 1-EDE-B-1-B > RLGM Screened / Anchorage 1-EDE-B-1-C > RLGM Screened / Anchorage 1-EDE-B-1-D > RLGM Screened / Anchorage 1-EDE-BC-1-B > RLGM Screened / Anchorage 1-EDE-BC-1-D > RLGM Screened / Anchorage 1-EDE-CP-1-E -ElY > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 1-EDE-CP-1-F -E2B > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 I-EDE-CP-227 > RLGM Screened / Anchorage l-EDE-CP-228 > RLGM Screened / Anchorage 1-EDE-CP-229 > RLGM Screened / Anchorage l-EDE-CP-230 > RLGM Screened / Anchorage 1-EDE-CP-248 > RLGM Screened / Anchorage l-EDE-CP-249 > RLGM Screened / Anchorage 1-EDE-I-1-A > RLGM Screened / Anchorage 1-EDE-I-1-B > RLGM Screened / Anchorage 1-EDE-I-1-C > RLGM Screened / Anchorage 1-EDE-I-1-D > RLGM Screened / Anchorage 1-EDE-I-1-E > RLGM Screened / Anchorage 1-EDE-I-1-F > RLGM Screened / Anchorage 1-EDE-MCC-612 > RLGM Screened / Anchorage l-EDE-MCC-615 > RLGM Screened / Anchorage l-EDE-MCC-621 > RLGM Screened / Anchorage 1-EDE-MCC-631 > RLGM Screened / Anchorage l-EDE-MM-578 " > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 l-EDE-MM-580 > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 l-EDE-MM-583 > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 Page 2-1 of 7

Equip ID HCLPF Evaluation Notes 1-EDE-PP-111-B > RLGM Screened / Anchorage 1-EDE-PP-112-A > RLGM Screened / Anchorage 1-EDE-PP-112-B > RLGM Screened / Anchorage 1-EDE-PP-113-A > RLGM Screened / Anchorage 1-EDE-PP-113-B > RLGM Screened / Anchorage 1-ED-PP-122B > RLGM Screened / Anchorage 1-EDE-PP-11-E > RLGM Screened / Anchorage 1-EDE-PP-11-F > RLGM Screened / Anchorage 1-EDE-PP-1-A > RLGM Screened / Anchorage 1-EDE-PP-1-B > RLGM Screened / Anchorage 1-EDE-PP-1-C > RLGM Screened / Anchorage 1-EDE-PP-1-D > RLGM Screened / Anchorage 1-EDE-PP-1-E > RLGM Screened / Anchorage 1-EDE-PP-1-F > RLGM Screened / Anchorage 1-EDE-SWG-11-A > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 1-EDE-SWG-11-B > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 C RLGM

> Screened / Anchorage Bounding HCLPF evaluation performed in

-EDE-SWG-11-C >S14Q4251-CAL-005 1-EDE-SWG-11-D > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 1-EDE-SWG-5 > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 1-EDE-SWG-6 > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 Hosted in 1-EDE-SWG-6. Relay HCLPF 1-CC-P-11B-BKR-86 > RLGM Relay Function evaluatin per ed in 1CL00 evaluation performed in 14Q4251-CAL-004 Hosted in 1-EDE-SWG-6. Relay HCLPF 1-CS-P-2B-BKR-86 > RLGM Relay Function evlainpromdn1425CL04 evaluation performed in 14Q4251-CAL-004 S> RLGM Relay Function Hosted in 1-EDE-SWG-6. Relay HCLPF 1-ED-SWG6-A9-86evaluation performed in 14Q4251-CAL-004 l - ->Ra cHosted in 1-EDE-SWG-6. Relay HCLPF evaluation performed in 14Q4251-CAL-004 Hosted in 1-EDE-SWG-6. Relay HCLPF 1-RHP-8-BK-86 RLM Rlay uncion evaluation performed in 14Q4251-CAL-004

-ED-So-6-Ae-86 > RLGM Relay FunctionHCLPF evaluation performed in 14Q4251-CAL-004 Hosted in 1-EDE-SWG-6. Relay HCLPF evaluation performed in 14Q4251-CAL-004

> RLGM Screened / Anchorage Bounding HCLPF evaluation evaluation performed in 14Q4251-CAL-005 Page 2-2 of 7

Equip ID HCLPF Evaluation Notes 1-EDE-US-62 > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 1-EDE-US-63 > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 1-ED-PP-12-E > RLGM Screened / Anchorage 1-ED-PP-3-C > RLGM Screened / Anchorage 1-MM-CP-915B > RLGM Screened / Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 1-CBA-DP-21B > RLGM Screened 1-MM-CP-914B > RLGM Screened /Anchorage Bounding HCLPF evaluation performed in 14Q4251-CAL-005 1-CBA-CP-178 > RLGM Screened / Anchorage I Component screened against RLGM ISRS Component Evaluation due to elevation > "40' above grade 1-CBA-FY-26B > RLGM Screened / Component Component screened against RLGM ISRS Evaluation due to elevation > "40' above grade 1-CBA-TCV-21200B > RLGM Screened / Component Component screened against RLGM ISRS Evaluation due to elevation > '40' above grade

> RLGM Screened / Anchorage / Component screened against RLGM ISRS Component Evaluation due to elevation > "40' above grade

> RLGM Screened / Anchorage / Component screened against RLGM ISRS Component Evaluation due to elevation > "'40' above grade Screened / Anchorage / Component screened against RLGM ISRS Component Evaluation due to elevation > "40' above grade Screened / Anchorage / Component screened against RLGM ISRS 1-MM-CP-297Co onent Evaluation due to elevation > 40'above rade 1-MM-C-297B > RLGM Screened Component Evaluation /

/ Anchorage Component due to elevation > against screened RLGM

'40' above ISRS grade 1-MM-CP-3 > RLGM Screened / Anchorage / Component screened against RLGM ISRS Component Evaluation due to elevation > "40' above grade

> RLGM Screened / Anchorage / Component screened against RLGM ISRS Component Evaluation due to elevation > "40' above grade Screened // Anchorage / Component screened against RLGM ISRS 1-MMCP > LGM Screened Evaluation /

ComponentAnchorage Component screened due to elevation against

> -'40' RLGM above ISRS grade IComponent Evaluation due to elevation > -40' above grade 1-EDE-MCC-641 > RLGM Screened / Anchorage 1-EDE-US-64 > RLGM Screened / Anchorage 1-SW-P-lb0-B > RLGM Screened / Anchorage Critical anchorage failure mode (concrete breakout) evaluated in 14Q4251-CAL-006 1-SW-V-140 > RLGM Screened 1-SW-V-25 > RLGM Screened 1-SW-V-27 > RLGM Screened 1-SW-FN-51B > RLGM Screened / Anchorage / Component screened against RLGM ISRS Component Evaluation due to elevation > "40' above grade

> RLGM Screened / Anchorage / Component screened against RLGM ISRS Component Evaluation due to elevation > "40' above grade 1-EDE-MCC-511 > RLGM Screened / Anchorage Page 2-3 of 7

Equip ID HCLPF Evaluation Notes 1-EDE-MCC-611 > RLGM Screened / Anchorage 1-CBA-E-230B > RLGM Screened / Anchorage 1-FW-FV-4214B > RLGM Screened 1-FW-FV-4224B > RLGM Screened 1-FW-FV-4234B > RLGM Screened 1-FW-FV-4244B > RLGM Component Evaluation Component stresses due to guide support evaluated in 14Q4251-CAL-006 1-FW-LT-4252 > RLGM Screened / Anchorage 1-FW-LT-4257 > RLGM Screened / Anchorage 1-FW-P-37A-SKD-15 > RLGM Screened / Anchorage 1-FW-V-346 > RLGM Screened 1-MM-IR-49 > RLGM Screened / Anchorage 1-MM-IR-50 > RLGM Screened / Anchorage 1-MS-V-395 > RLGM Screened 1-MM-IR-51B > RLGM Screened / Anchorage 1-FW-V-39 > RLGM Screened 1-FW-V-48 > RLGM Screened 1-MS-FY-394A > RLGM Screened / Anchorage 1-MS-FY-394B > RLGM Screened / Anchorage 1-MS-V-394 > RLGM Screened 1-MS-PCV-3002 > RLGM Screened / Anchorage 1-MS-PV-3002 > RLGM Screened 1-MS-PV-3002-N2 > RLGM Screened / Anchorage 1-MS-PV-3003 > RLGM Screened 1-MS-PV-3003-N2 > RLGM Screened / Anchorage 1-MS-PY-3002-1 > RLGM Screened / Anchorage 1-MS-PY-3002-2 > RLGM Screened / Anchorage 1-MS-PY-3002-3 > RLGM Screened / Anchorage 1-MS-PY-3002-4 > RLGM Screened / Anchorage 1-MS-PY-3002-5 > RLGM Screened / Anchorage 1-MS-PY-3002-6 > RLGM Screened / Anchorage 1-MS-PY-3003-1 > RLGM Screened / Anchorage Page 2-4 of 7

Equip ID HCLPF Evaluation Notes 1-MS-PY-3003-2 > RLGM Screened / Anchorage 1-MS-PY-3003-3 > RLGM Screened / Anchorage 1-MS-PY-3003-4 > RLGM Screened / Anchorage 1-MS-PY-3003-5 > RLGM Screened / Anchorage 1-MS-PY-3003-6 > RLGM Screened / Anchorage 1-RC-LT-1311 > RLGM Screened / Anchorage 1-RC-LT-1321 > RLGM Screened / Anchorage 1-RC-PT-403 > RLGM Screened / Anchorage 1-RC-PT-405 > RLGM Screened / Anchorage 1-SI-PT-2576 > RLGM Screened / Anchorage 1-SI-PT-2577 > RLGM Screened / Anchorage CO-TK-25 > RLGM Component Evaluation / HCLPF for tank and anchorage evaluated in Anchorage 14Q4251-CAL-003 1-CC-E-153B > RLGM Screened / Anchorage 1-CC-P-322B > RLGM Screened / Anchorage 1-CS-V-168 > RLGM Screened 1-FW-LT-501 > RLGM Screened / Anchorage 1-FW-LT-502 > RLGM Screened / Anchorage 1-FW-LT-503 > RLGM Screened / Anchorage 1-FW-LT-504 > RLGM Screened / Anchorage 1-CC-V-176 > RLGM Screened 1-FW-LT-519 > RLGM Screened / Anchorage 1-FW-LT-537 > RLGM Screened / Anchorage 1-MM-IR-6 > RLGM Screened / Anchorage 1-MM-IR-8 > RLGM Screened / Anchorage 1-RC-LT-459 > RLGM Screened / Anchorage 1-RC-LT-460 > RLGM Screened / Anchorage 1-FAH-FY-5443-2 > RLGM Screened 1-CC-V-445 > RLGM Screened 1-FAH-DP-12B > RLGM Screened 1-MM-IR-52B > RLGM Screened / Anchorage 1-FW-V-30 > RLGM Screened Page 2-5 of 7

Equip ID HCLPF Evaluation Notes 1-FW-V-57 > RLGM Screened 1-MS-FY-393 > RLGM Screened / Anchorage 1-MS-V-393 > RLGM Screened 1-MS-PCV-3001 > RLGM Screened / Anchorage 1-MS-PCV-3004 > RLGM Screened / Anchorage Component assigned design-basis SSE HCLPF based on plant procedures.

Undesirable configuration requires modification for RLGM 1-MS-PV-3001-N2 > RLGM Screened / Anchorage 1-MS-PV-3004 > RLGM Screened 1-MS-PV-3004-N2 > RLGM Screened / Anchorage 1-MS-PY-3001-1 > RLGM Screened / Anchorage 1-MS-PY-3001-2 > RLGM Screened / Anchorage 1-MS-PY-3001-3 > RLGM Screened / Anchorage I-MS-PY-3001-4 > RLGM Screened / Anchorage 1-MS-PY-3001-5 > RLGM Screened / Anchorage 1-MS-PY-3001-6 > RLGM Screened / Anchorage 1-MS-PY-3004-1 > RLGM Screened / Anchorage 1-MS-PY-3004-2 > RLGM Screened / Anchorage 1-MS-PY-3004-3 > RLGM Screened / Anchorage 1-MS-PY-3004-4 > RLGM Screened / Anchorage 1-MS-PY-3004-5 > RLGM Screened / Anchorage 1-MS-PY-3004-6 > RLGM Screened / Anchorage 1-CBS-TK-8 > RLGM Component Evaluation / HCLPF for tank and anchorage evaluated in Anchorage 14Q4251-CAL-003 1-CS-LCV-112-E > RLGM Screened 1-SI-V-139 > RLGM Screened 1-CS-V-143 > RLGM Screened 1-CC-V-257 > RLGM Screened 1-CC-V-447 > RLGM Screened 1-CC-V-448 > RLGM Screened 1-CS-E-51B > RLGM Screened / Anchorage Support structure and anchorage evaluated in 14Q4251-CAL-006 1-CS-F-3 > RLGM Screened / Anchorage Page 2-6 of 7

Equip ID HCLPF Evaluation Notes 1-CS-F-4A > RLGM Screened / Anchorage 1-CS-P-2B > RLGM Screened / Anchorage 1-CC-E-17-B > RLGM Screened / Anchorage 1-CC-P-11B > RLGM Screened / Anchorage 1-CC-TV-2271-1 > RLGM Screened 1-CC-TV-2271-1/2-N2-1 > RLGM Screened / Anchorage 1-CC-TV-2271-1/2-N2-2 > RLGM Screened / Anchorage 1-CC-TV-2271-1/2-N2-3 > RLGM Screened / Anchorage 1-CC-TV-2271-1/2-N2-4 > RLGM Screened / Anchorage 1-CC-TV-2271-2 > RLGM Screened 1-CC-V-1301 > RLGM Screened 1-CC-V-986 > RLGM Screened 1-CS-P-3B > RLGM Screened / Anchorage 1-SW-V-19 > RLGM Screened 1-SW-V-23 > RLGM Screened 1-CS-LCV-112-C > RLGM Screened 1-SW-S-11 > RLGM Screened / Anchorage 1-CC-TK-19-B > RLGM Screened / Anchorage 1-SW-V-5 > RLGM Screened 1-RH-FE-611 > RLGM Screened 1-RH-FIS-611 > RLGM Screened / Anchorage 1-RH-P-8B > RLGM Screened / Anchorage 1-RH-E-9B > RLGM Screened / Anchorage 1-RH-FCV-611 > RLGM Screened 1-CBS-V-5 > RLGM Screened 1-RH-V-21 > RLGM Screened 1-CC-V-272 > RLGM Screened Page 2-7 of 7