ML17059A922
| ML17059A922 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 08/31/1995 |
| From: | Marsh L NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML17059A921 | List: |
| References | |
| NPR-69-A-68, NUDOCS 9509050343 | |
| Download: ML17059A922 (12) | |
Text
gAS AEGIJ 0
C O
IVl9
'4 I
qO
++*++
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 NI GA OHAWK POW R CORPORATION DOCKET NO. 50-410 N NE MIL OI NUCL AR S 0
UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.
68 License No. NPF-69 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment by Niagara Mohawk Power Corporation (the licensee) dated August 28, 1995, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Commission's rules and regulations set forth in 10 CFR Chapter 1;
B.
The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.
There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D.
The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.
2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. NPF-69 is hereby amended to read as follows:
9509050343,950831 g)
PDR ADQCK, 050004i0 P, 'DR
(2)
Tec
'cal S ec'fications nd E
'nmenta P ote tio Pla The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, both of which are attached
- hereto, as revised through Amendment No. 68 are hereby incorporated into this license.
Niagara Hohawk Power Corporation shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.
3.
This license amendment is effective as of the date of its issuance to be implemented upon receipt.
FOR THE NUCLEAR REGULATORY COMHISSION pc~A,~
Ledyard B. Harsh, Director Project Directorate I-I Division of Reactor Projects I/II Office of Nuclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance:
August 31, 1995
A ACHMENT TO LICENSE AMENDMENT AM D
EN 68 TO FACILITY OPERATING LICENSE NO. NPF-69 DOCKET NO. 50-410 Revise Appendix A as follows:
Re ove es 3/4 6-13 3/4 6-14 B3/4 6-2 t Pa es 3/4 6-13 3/4 6-14 B3/4 6-2
NTA NMEN Y TEM P IMA Y INM NT PRIMARY NTAINMENT R
E YSTE MITIN NDITI N ERATI N
3.6.1.7 The drywell and suppression chamber 12-inch and 14-inch purge supply and exhaust isolation valves shall be OPERABLE and:
a.
The 12-inch (2CPS*AOV105, 2CPS*AOV107, 2CPS*AOV109, 2CPS*AOV1.1 1) and 14-inch (2CPS*AOV104, 2CPS*AOV106, 2CPS*AOV108, 2CPS*AOV110) valves in the purge system supply and exhaust lines may be open for up to 135 hours0.00156 days <br />0.0375 hours <br />2.232143e-4 weeks <br />5.13675e-5 months <br /> per 365 days for I
VENTING or PURGING.*
b.
Purge system valves 2CPS*AOV105 (12-inch), 2CPS*AOV107 (12-inch), 2CPS*AOV109 (12-inch), and 2CPS*AOV110 (14-inch) shall be blocked to limitthe opening to 70'.
Purge system valve 2CPS*AOV111 (12-inch) shall be blocked to limit the opening to 60'.
S..
d
~AT~IN:
a 0 b.
With the drywall and suppression chamber purge supply and/or exhaust isolation valve(s) inoperable, or open for more than. 135 hours0.00156 days <br />0.0375 hours <br />2.232143e-4 weeks <br />5.13675e-5 months <br /> per 365 days for other than pressure I
control*, close the open valve(s); otherwise isolate the penetration(s) wi'thin 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
With a drywell and suppression chamber purge supply and/or exhaust isolation valve(s) with resilient material seals having a measured leakage rate exceeding the limit of Surveillance Requirement 4.6.1.7.2, restore the inoperable valve(s) to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
The 135 hour0.00156 days <br />0.0375 hours <br />2.232143e-4 weeks <br />5.13675e-5 months <br /> limit shall not apply to the use of valves 2CPS*AOV108 (14-inch) and 2CPS*AOV110 (14-inch), or 2CPS*AOV109 (12-inch) and 2CPS*AOV111 (12-inch), for primary containment pressure control, provided 2GTS*AOV101 is closed, and its 2-inch bypass line is the only flow path to the standby gas treatment system.
NINE MILE POINT - UNIT 2 3/4 6-13 Amendment No. kk, 68
NT INMENT Y TEM PRIM RY T
NMENT PRIMARY NTAINMENTP R
E YSTEM RVEILLAN E RE IREMENT 4.6.1.7.1 At least once per refueling outage each drywell and suppression chamber purge supply
. and exhaust isolation valve of Specification 3.6.1.7.b shall be verified to be blocked to limitthe opening to 70'r 60', as applicable.
4.6.1.7.2 At least once per 92 days each 12-and 14-inch drywell and suppression chamber purge supply and exhaust isolation valve with resilient material seals shall be demonstrated OPERABLE by verifying that the measured leakage rate is less than or equal to 4.38 scf per hour per 14-inch valve and 3.75 scf per hour per 12-inch valve when pressurized to Pa, 39.75 psig.
Those purge supply and exhaust isolation valves listed on Table 3.6.1.2-1 shall be pressurized to 40.0 psig.
NINE MILE POINT. - UNIT 2 3/4 6-14 Amendment No. 6 68
NTAINMENT Y TEM BA E
PRIMARY NT INMEN 4..1.4 PRIMARY ONTAINMENT TR T RAL INTE RITY This limitation ensures that the structural integrity of the containment will be maintained.
comparable to the original design standards for the life of the unit. Structural integrity,is required to ensure that the containment willwithstand the design pressure of 45 psig in the event of a loss-of-coolant accident (LOCA). A visual inspection in conjunction with Type A leakage tests is sufficient to demonstrate this capability.
4..1.
DRYWELLAND PPRE I
N HAMBER INTERNAL PRE RE The limitations on drywell and suppression chamber internal pressure ensure that the containment peak pressure of less than 39.75 psig does not exceed the design pressure of 45.0 psig during LOCA conditions or that the external pressure differential does not exceed the design maximum external pressure differential of 4.7 psi, The limit of 14.2 to 15.45 psia for initial positive containment pressure will limitthe total pressure to 39.75 psig, which is less than the design pressure and is consistent with the safety analysis.
4..1.
DRYWELLAVERA E AI TEMPERAT RE The limitation on drywall average air temperature ensures that the containment peak air temperature does not exceed the design temperature of 340'F during steam lin'e break conditions and is consistent with the safety analysis.
In addition, the maximum drywall average air temperature is also the limiting initial condition used to determine the maximum negative differential pressure acting on the drywell and suppression chamber following inadvertent actuation of the containment sprays.
4..1.7 PRIMARY NTAINMENTPUR E
Y TEM The 14-inch drywell and 12-inch suppression chamber supply and exhaust valves are limited to 135 hours0.00156 days <br />0.0375 hours <br />2.232143e-4 weeks <br />5.13675e-5 months <br /> of use per 365 days during purge or vent operations in OPERATIONAL CONDITIONS 1, 2, and 3 to meet the requirements of Branch Technical Position CSB 6-4 and Generic Letter 83-02 for valves greater than 8 inches in diameter.
The requirement to limitthe opening of 2CPS "AOV105, 2CPS "AOV107, 2CPS "AOV109, and 2CPS "AOV110 to 70 degrees, and 2CPS "AOV111 to 60 degrees ensures these valves will close'during a LOCA or steam line break accident, and therefore, the site boundary dose guidelines of 10 CFR 100 would not be exceeded in the event of an accident during purging or venting operations.
NINE MILE POINT - UNIT 2 b ~
B3/4 6-2 Amendment No. kk 6<