GNRO-2018/00051, Supplement to Revise Technical Specifications to Adopt Technical Specification Task Force Traveler TSTF-542, Reactor Pressure Vessel Water Inventory Control

Supplement to Revise Technical Specifications to Adopt Technical Specification Task Force Traveler TSTF-542, Reactor Pressure Vessel Water Inventory Control

ML18297A380
Person / Time
Site:	Grand Gulf
Issue date:	10/23/2018
From:	Emily Larson Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GNRO-2018/00051
Download: ML18297A380 (13)

Text

Entergy Operations, Inc.

P.O. Box 756 Port Gibson, Mississippi 39150 Eric A. Larson Site Vice President Grand Gulf Nuclear Station Tel: 601-437-7500 10 CFR 50.90 GNR0-2018/00051 October 23, 2018 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

SUBJECT:

Supplement to Revise Technical Specifications to Adopt Technical Specification Task Force Traveler TSTF-542," Reactor Pressure Vessel Water Inventory Control" Grand Gulf Nuclear Station, Unit 1 Docket No. 50-416 License No. NPF-29

REFERENCES:

1. Entergy Operations Inc. (EOI) letter to the Nuclear Regulatory Commission (NRG) dated April 10, 2018, "Application to Revise Technical Specifications to Adopt Technical Specification Task Force Traveler TSTF-542, 'Reactor Pressure Vessel Water Inventory 111 Control (NRG ADAMS Accession No. ML181008304)

Dear Sir or Madam:

In Reference 1, Entergy Operations Inc. (EOI) requested an amendment to Facility Operating License No. NPF-29 for Grand Gulf Nuclear Station, Unit 1 (GGNS). The proposed change will replace existing Technical Specification (TS) requirements related to Operations with a Potential for Draining the Reactor Vessel (OPDRV) with new requirements on Reactor Pressure Vessel Water Inventory Control to protect Safety Limit 2.1.1.3. This supplement provides cqrrected pages that supplant equivalent-pages provided in Reference 1, and corrects minor editorial discrepancies that were subsequently identified. In order to implement this TS change, EOI requests a 120 day implementation period.

GNR0-2018/00051 Page 2 of 2 of this letter provides the mark-up editorial corrections to previously submitted GGNS Technical Specifications (TS). Attachment 2 of this letter provides clean-typed, corrected pages to previously submitted GGNS TS. Attachment 3 of this letter provides the editorial correction to previously submitted GGNS TS Bases, these are provided to the Nf3C for information purposes only.

No new regulatory commitments are made in this submittal. The editorial corrections provided in this supplement do not impact the No Significant Hazards Consideration analysis that was performed in the Reference 1 submittal.

In accordance with 10 CFR 50.91, "Notice for Public Comment; State Consultation," paragraph (b), a copy of this supplement, with attachment, is being provided to the ,designated State Officials.

If you should have any questions regarding this submittal, please contact Douglas A. Neve, Manager Regulatory Assurance, at 601-437..:2103.

I declare under penalty of perjury that the foregoing is true and correct. Executed on October 23, 2018.

Sincerely, Eric A. Larson EAUrws Attachments: 1. Editorial Corrections Made to Original Submittal Technical Specifications (Mark-up Pages)

2. Editorial Corrections Made to Original Submittal Technical Specifications (Clean-Typed Pages)

3. Correct Technical Specification Bases (For Information

• Purposes Only) cc: NRC Region IV - Regional Administrator NRC Senior Resident Inspector, Grand Gulf Nuclear Station Dr. Mary Currier, State Health Officer, Mississippi Department of Health NRR Project Manager

Attachment 1 to GNR0-2018/00051 Editorial Corrections Made to Original Submittal Technical Specifications (Mark-Up Pages)

Page 1 is a revision of Technical Specification (TS) 3.3.5.1 (TS page 3.3-32)

Page 2 is a revision of Technical Specification (TS) 3.3.5.2 (TS page 3.3-43d)

Page 3 is a revision of Technical Specification (TS) 3.3.5.2 (TS page 3.3-43e)

Page 4 is a revision of Technical Specification (TS) 3.5.2 (TS page 3.5-8)

ECCS Instrumentation 3.3.5.1 3.3 INSTRUMENTATION 3.3.5.1 Emergency Core Cooling System (ECCS} Instrumentation LCO 3.3.5.1. The ECCS instrumentation for each Function in Table 3.3.5.1-1 shall be OPERABLE.

APPLICABILITY: According to Table 3.3.5.1-1.

ACTIONS

---

NOTE-------------------------------------

Separate Condition entry is allowed for each channel.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more required A. I Enter the Condition Immediately channels inoperable. referenced in Table 3.3.5.1-1 for the channel.

B. As required by 8.1 I' --------NOTES--------

Required Action A.I l. Only appl i cable .

and referenced in iA MQQ~S l, a, Table 3.3.5.1-1. and 3.

I I

2-.--0nly applicable for Functions I.a, l.b, 2.a and 2.b.

Declare supported 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> from feature(s} inoperable discovery of

- when its redundant loss of feature ECCS initiation initiation capability capability for is inoperable. feature(s} in both divisions AND

\

u (cont'inued}

GRAND GULF 3.3-32 Amendment No. 12-Q Page 1 of 4

RPV Water Inventory Control Instrumentation 3.3.5.2 Table 3.3.5.2-1 (page 1 of 2)

Rf?V Water Inventory Control Instrumentation APPLICABLE CONDITIONS MODES OR REQUIRED REFERENCED OTHER CHANNELS FROM SPECIFIED PER REQUIRED SURVEILLANCE ALLOWABLE

. FUNCTION CONDITIONS FUNCTION ACTION A.1 REQUIREMENTS VALUE

1. Low Pressure Coolant Injection-A (LPCI) and Low Pressure Core Sgray (LPCS} Subsystems

a. Reactor Vessel 1.....§. 3(a) .Q SR 3.3.5.2.1 ~ 452 gsig and Pressure - Low SR 3.3.5.2.2 ~ 534 QSig (Injection Permissive}

b. LPCS Pumg Discharge Flow - Low 1.....§. ~ £ SR 3.3.5.2.1 21285 ggm (Bygass} SR 3.3.5.2.2

c. LPCI Pumg A 1.....§. ~ £ SR 3.3.5.2.1 2 1133 ggm Discharge Flow - Low SR 3.3.5.2.2 (Bygass}

d. Manual Initiation 1.....§. ~ £ SR 3.3.5.2.3 NA

2. LPCI Band LPCI C Subsystems

a. Reactor Vessel 1.....§. 3(a) .Q SR 3.3.5.2.1 ~ 452 gsig and

• Pressure - Low SR 3.3.5.2.2 ~ 534 QSig (Injection Permissive)

b. LPCI Pumg B 1.....§. 1._Qfil £ SR 3.3.5.2.1 2 1133 ggm and LPCI Pumg C gump(a) SR 3.3.5.2.2 Discharge Flow - Low (Bygass}

c. Manual Initiation 1.....§. ~ £ SR 3.3.5.2.3 NA (continued}

(a} Associated with an ECCS subsystem reguired to be OPERABLE by LCO 3.5.2, "Reactor Pressure Vessel (RPV} Water lnvento[Y Control."

GRAND GULF 3.3-43d Amendment No.

Page 2 of 4

~

RPV Water lnventor:y Control Instrumentation 3:3.5.2 Table 3.3.5.2-1 (Qage 2 of 2}

RPV.Water Inventory Control Instrumentation

• j APPLICABLE CONDITIONS MODES OR REQUIRED REFERENCED OTHER CHANNELS FROM SPECIFIED PER REQUIRED SURVEILLANCE

• ALLOWABLE FUNCTION CONDITIONS FUNCTION ACTION A.1 REQUIREMENTS VALUE

3. High Pressure Core SQray (HPCS} System 4(b) 5(b)

a. Condensate Storage ~ Q SR 3.3.5.2.1 2 4.7 ft Tank Level - Low SR 3.3.5.2.2

b. HPCS Pump Discharge Pressure 1.....§. ')

~ s SR 3.3.5.2.1  :::: 108 psig and SR 3.3.5.2.2  ::;; 1282 psig

- High (Bypass}

c. HPCS System Flow Rate - Low 1.....§. ~ s SR 3.3.5.2.1  :::: 1124 gpm SR 3.3.5.2.2 and (Bypass}  ::;; 1327 gpm

4. RHR System Isolation

a. Reactor Vessel 19 2 in one trip ~ SR 3.3.5.2.1  :::: 10.8 inches Water Level - Low, system SR 3.3.5.2.2 Level3

5. Reactor Water Cleanup (RWCU} System Isolation

a. Reactor Vessel 19 2 in one trip ~ SR 3.3.5.2.1  :::: -43.8 inches Water Level - Low system SR 3.3.5.2.2 Low, Level 2 (a} Associated with an ECCS subsystem required to be OPERABLE by LCO 3.5.2, "Reactor Pressure Vessel (RPV} Water Inventory Control."

(b} When HPCS is OPERABLE for compliance with LCO 3.5.2, "Reactor Pressure Vessel (RPV} Water Inventory Control," and aligned to the condensate storage tank.

(c} When automatic isolation of the associated penetration flow path(s} is credited in calculating DRAIN TIME.

GRAND GULF 3.3-43e Amendment No.

Page 3 of 4

SURVEILLANCE REQUIREMENTS (contfoued)

SURVEILLANCE FREQUENCY SR 3. 5. 2 .-2 Verify, for the required High Pressure Core 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> Iel Spray (HPCS} System, the:

a. Suppression pool water level is 2: 12 ft 8 inches; or

b. Condensates water level is 2 18 ft.

lL SR 3. 5. 2 .-3 Verify, for e-a*eh required ECCS injection/ 31 qays

/I spray subsystem, locations susceptible_to gas accumulation are suf ficently_ filled

~ with water.

SR 3.5.2.-4 ------------------ NOTE------------ .. * ----

Not required to be met Jor system vent flow I

paths opened under administrative control.

\

Verif efrefl required ECCS inje.ct:Lon/spray 31 days sub ~em manual, power operated, and tomatic,~alve in. the flow path, that is not lock.e, sealed, or otherwise secured in position, *sin the correct position.

( continued.)

GRANP GULF 3.5-8 Amendment No. ~ , tt9-, ~

Page 4 of 4 r*.

Attachment 2 to GNR0-2018/00051 Editorial Corrections Made to Original Submittal Technical Specifications (Clean Typed Pages)

Page 1 is a revision of Technical Specification (TS) 3.3.5.2 (TS page 3.3-43d)

Page 2 is a revision of Technical Specification (TS) 3.3.5.2 (TS page 3.3-43e)

Page 3 is a revision of Technical Specification (TS) 3.5.2 (TS page 3.5-8)

Table 3.3.5.2-1 (page 1 of 2)

RPV Water Inventory Control Instrumentation APPLICABLE CONDITIONS MODES OR REQUIRED REFERENCED OTHER CHANNELS FROM SPECIFIED PER REQUIRED SURVEILLANCE ALLOWABLE FUNCTION CONDITIONS FUNCTION ACTION A.1 REQUIREMENTS VALUE

1. Low Pressure Coolant Injection-A (LPCI) and Low Pressure Core Spray (LPCS) Subsystems

a. Reactor Vessel 4, 5 3(a) c SR 3.3.5.2.1 ~ 452 psig and Pressure - Low SR 3.3.5.2.2  ::;;; 534 psig (Injection Permissive)

b. LPCS Pump Discharge Flow - 4, 5 1(a) E SR 3.3.5.2.1 2 1285 gpm tow (Bypass) SR 3.3.5.2.2

c. LPCI Pump A 4, 5 1(a) E SR 3.3.5.2.1 2 1133 gpm Discharge Flow - SR 3.3.5.2.2 Low (Bypass)

d. Manual Initiation 4, 5 1(a) E SR 3.3.5.2.3 NA

.)

2. LPCI B and LPCI C Subsystems

a. Reactor Vessel 4, 5 3(a) c SR 3.3.5.2.1 ~ 452 psig and Pressure - Low SR 3.3.5.2.2  ::;;; 534 psig (Injection Permissive)

b. LPCI Pump B 4, 5 1 per E SR 3.3.5.2.1 2 1133 gpm and LPCI Pump C pump(a) SR 3.3.5.2.2 Discharge Flow -

Low (Bypass)

c. Manual Initiation 4, 5 1(a) E SR 3.3.5.2.3 NA (continued)

(a) Associated with an ECCS subsystem required to be OPERABLE by LCO 3.5.2, "Reactor Pressure Vessel (RPV) Water Inventory Control."

Page 1 of 3

Table 3.3.5.2~1 (page 2 of 2)

RPV Water Inventory Control Instrumentation APPLICABLE CONDITIONS MODES OR REQUIRED REFERENCED OTHER CHANNELS FROM SPECIFIED PER REQUIRED SURVEILLANCE ALLOWABLE FUNCTION CONDITIONS FUNCTION ACTION A.1 REQUIREMENTS VALUE

3. High Pressure Core Spray (HPCS) System

a. ,condensate Storage 4(b), 5(b) 1(a) D SR 3.3.52.1 ~4.7 ft Tank Level - Low SR 3.3.5.2.2

b. HPCS Pump 4, 5 1(a) E SR 3.3.5.2.1 ~ 108 psig and Discharge Pressure SR 3.3.5.2.2  ::;; 1282 psig

- High (Bypass)

c. HPCS System Flow 4, 5 1(a) E SR 3.3.5.2.1 ~ 1124 gpm

\ Rate - Low SR 3.3.5.2.2 and (Bypass)  ::;; 1327 gpm

4. RHR System Isolation

a. Reactor Vessel (c) 2 in one B SR 3.3.5.2.1 ~ 10.8 inches Water Level - Low, trip system SR 3.3.5.2.2 Level3

5. Reactor vyater Cleanup (RWCU) System Isolation

a. Reactor Vessel (c) 2 in one B SR 3.3.5.2.1 ~ -43.8 inches Water Level - Low trip system SR 3.3.5.2.2 Low, Level 2 (a) Associated with an ECCS subsystem required to be OPERABLE by LCO 3.5.2, "Reactor Pressure Vessel (RPV) Water Inventory Control."

(b) When HPCS is OPERABLE for compliance with LCO 3.5.2, "Reactor Pressure Vessel (RPV) Water Inventory Control," and aligned to the condensate storage tank.

(c) When automatic isolation of the ~ssociated' penetration flow path(s) is credited in calculating DRAIN TIME.

Page 2 of 3

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.5.2.3 Verify, for the required High Pressure Core Spray 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> (HPCS) System, the:

a. Suppression pool water level is ~ 12 ft 8 inches; or

b. Condensate storage tank water level is ~ 18 ft.

SR 3.5.2.4 Verify, for the required ECCS injection/ spray 31 days subsystem, locations susceptible to gas accumulation are sufficently fiUed with water.

SR 3.5.2.5 -------------------------------N()TE------------------------------

Not required to be met for system vent flow paths opened under a9ministrative control.

Verify, for the required ECCS injection/spray 31 days subsystem, each manual, power operated, and automatic valve in the flow path, that is not locked, sealed, or otherwise secured in position, is in the correct position.

(continued)

Page 3 of 3

Attachment 3 to GNR0-2018/00051 I

Correct Technical Specification Bases (For Information Purposes Only)

BASES SURVEILLANCE SR 3.5.2.5~ (continued)

REQUIREMENTS initiation signal is allowed to be in a nonaccident position provided the valve will automatically reposition in the proper stroke time. This SR does not require any testing or valve manipulation; rather, it involves verification that those valves capable of potentially being mispositioned are in the correct position. This SR does not apply to valves that cannot be inadvertently misaligned, such as check valves. The 31 day Frequency is appropriate because the valves are operated under procedural control and the prpbability of their being mispositioned during this time period is low.

In MODES 4 and 5, the RHR System may operate in the shutdown cooling mode, or be aligned to allow alternate means to remove decay heat and sensible heat from the reactor. Therefore, RHR valves that are required for LPCI subsystem operation may be aligned for decay heat removal.

One LPCI subsystem of the RHR System may be considered OPERABLE for the ECCS function if all. the required valves in the LPCI flow path can be manually realigned (remote or local) to allow injection into the RPV and the system is not otherwiie inoperable. This will ensure adequate core cooling if an inadvertent vessel draindown should occur.

The Surveillance is modified by a Note which exempts system vent flow paths opened under administrative control. The administrative control should be proceduralized and include stationing a dedicated individual at the system vent flow path who is in continuous communication with the operators in the control robm. This individual will have a method to rapidly close the system vent flow path if directed.

SR 3.5.2.6 Verifying that the required ECCS injection/spray subsystem can be manually started and operate for at least 10 minutes demonstrates that the subsystem is available to mitigate a draining event. Testing the ECCS injection/spray subsystem through the test return line is necessary to avoid overfilling the refueling cavity. The minimum operating time of 10 minutes was based on engineering judgement. The performance frequency of 92 days is consistent with similar at-power testing required by SR 3.5.1.7. 1 SR 3.5.2.7 Verifying that each valve credited for automatically isolating a penetration flow path actuates to the isolation position -on an actual or simulated RPV water level isolation signal is required to prevent RPV water inventory from dropping below the T AF should an unexpected draining event occur.

The 24 month Frequency is based on the need to perform this Surveillance under the conditions that apply during a plant outage and the potential for an unplanned transient if the Surveillance were performed with the reactor at power. Operating experience has shown these components usually pass the Surveillance when performed *at the 24 Page 1 of 1