ML20079L953
| ML20079L953 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 10/24/1991 |
| From: | Black S Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20079L955 | List: |
| References | |
| NUDOCS 9111070208 | |
| Download: ML20079L953 (10) | |
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NUCLE AR REGULATORY COMMISSION y-WASHINGTON. o. C. 20sS$
HOUSTON LIGHTING & POWER COMPANY CITY PU,BLIC SERVICE BOARD OF SAN ANTONIO CENTRAL POWER AND LIGHT COMPANY CITY OF AUSTIN, TEXAS DOCKET NO. 50-498 SOUTH TEXA5 PROJECT, UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 30 License No. NPF-76 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment by Houston Lighting & Power Company *
(E MP) acting on behalf of itself and for the City Public Service cuard of San Antonio (CF5), Central Power and Light Company (CPL),
and City of Austin, Texas (C0A) (the licensees) dated October 30, 1990, as supplemented by letter dated September 25, 1991, complies with the standards and requirementi of the Atomic Energy Act of 1954, as amended (the Act), and the Commission's rules and regulations set forth in 10 CFR Chapter I;
..B.
The facility will operate in conformity with the application, as amended, 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 license amendment will not be inimical to tne common aefense 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 satisticd.
- Houston Lighting & Power Company is authorized to act for the City Public Service Board of San Antonio, Central Power and Light Company and City of Austin, Texas and has exclusive responsibility and control over the physical construction, operation and maintenance of the facility.
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Accordingly, the-license-is amended by changes to the Technical Specifi-cationsEas: indicated ~in the attachment to this license amendment at.d Paragraph 2.C.(2) of Facility Operating License No. NPF-76 is hereby amended to read as follows:
2.
Technical Specifications The Technical Specifications contained in Appendix A, as revised through Amendment No.' 30, and the Environmental Protection Plan contained in Appendix B, are hereby incorporated in the license.
The licensee shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.
3, The license amendment is effective as of its date of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION V
Suzanne C. Black,' Director Project Directorate IV-2
. Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation
Attachment:
Change ~5 to:the Technical Specifications-
.,-Date of Issuance:
October 24, 1991
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NUCLEAR REGULATORY COMMISSION 2- &# E wAsmNoToN D. C. 20555
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HOUSTON LIGHTING & POWER COMPANY CITY PUBLIC SERVICE BOARD OF SAN ANTONIO CENTRAL POWER AND LIGHT COMPANY CITY OF AUSTIN, TEXAS DOCKET NO. 50-499 SOUTH TEXAS PROJECT, UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSF.
Amendment No. 21 License No. NPF-80 1.
The Nuclear Regulatory Commission (the Commissica) has found that:
A.
The application for amendment by Houston Lighting & Power Company" (HL&P) acting on behalf of itself and for the City Public Service Board of San Antonio
'S), Central Power and Light Company (CPL),
and City of Aust'
.xas (C0A) (the licensees) dated October 30, 1990, as supple"..ted by letter dated September 25, 1991, 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 I;
- ..B.
The facility will operate in conformity with th9 application, as amended, 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 license 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.
l
" Houston Lighting & Power Company is authorized to act for the City Public Service Board of San Antonio, Central Power and Light Company and City of l
Austin, Texas and has exclusive responsibility and control over the physical construction, operation and maintenance of the facility.
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Accordingly, the license is amended by changes to the Technical _Specifi-cations as indicated in the attachment to this license amenament and Paragraph 2.C.(2) of facility Operating License No. NPF-80 is hereby amended to read as follows:
2.
-Technical Specifications The Technical-Specifications-contained in Appendix-A, as revised 1through Amendment No.
-21, and the Environmental Protection. Plan contained'in Appendix B, are hereby incorporated in _the license.
The-licensee shall_ operate the facility in accordance with the
--Technical Specifications and the Environmental Protection Plan.
,3.
The -license amendment:;is ef fective as of its' date of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION
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AgM (q, Suzanne C. Black, Director s
Project Directorate IV-2 Division-of Reactor Projects.III/IV/V Office of-Nuclear Reactor Regulation
Attachment:
Changes to theLTechnical Specifications _-
' Date of Issuance:
October 24', 1991:
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ATTACHMENT TO LICENSE AMENDMENT 1405. 30 AND 21 FACILITY OPERATING LICENSE NOS. NPF-76 AND NPF-80 DOCKET NOS. 50-498 AND 50-499 Replace the following pages of the Appendix A Technical Specifications with the attached pages.
The revised pages are identified by Amendment number and contain vertical lines indicating the areas of change.
The corresponding overleaf-pages are also provided to maintain document completeness.
REMOVE INSERT 3/4 6-15 3/4'6-15 3/4 6-16 3/4 6-16 3/4 6-17 3/4 6-17 3/4 6-18 3/4 6-18 3/4 6-19 3/4 6-19 3/4 6-20 3/4 6-20 3/4 6-21 B 3/4 6-3 8 3/4 6-3 B 3/4 6-4 B 3/4 6-4 9
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9 CONTAINMENT SYSTEMS RECIRCULATION FLUID PH CONTROL SYSTEM (Unit 2)
LIMITING CONDITIONS FOR OPERATION 3.6.2.2 The recirculation fluid pH control system shall be-operable with between 11,500 lbs. (213 cu. ft.) and 15,100 lbs (252 cu. ft.) of trisodium phosphate (w/12 hydrates) available in the storage baskets in the containment.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTION:
With less than the required amount of trisodium phosphate available, restore the system to the correct amount within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; restore the system to the correct amount within the next 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />, SURVEILLANCE REQUIREMENTS 4,6.2.2 During each refueling outage, as a minimum, the recirculation fluid pH control system shall be demonstrated operable by visually verifying that:
a.
6 trisodium phosphate storage baskets are in place, anu b,
hcVe' maintained their integrity, and c.
_are filled with trisodium phosphate such that the level is above the indicated fill mark.
SOUTH TEXAS - UNITS 1 & 2 3/4 6-15 Unit 1 - Amendment No. 30 Unit 2 - Amendment No. 21
CONTAINMENT SYSTEMS
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l CONfAINMENT COOLING SYSTEM LIMITING CONDITION FOR OPERATION 3.6.2.3 Three independent groups of Reactor Containment Fan Coolers (RCFC) shall be OPERABLE with a minimum of two units in two groups and one unit in the third group.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTION:
With one group of the above required Reactor Containment Fan Coolers inoperable, restore the inoperable group of RCFC to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
SURVEILLANCE REQUIREMENTS
-L 4.6.2.3 Each group of Reactor Containment Fan Coolers shall be oer.onstrated OPERABLE:
a.
At least once per 31 days by:
1)
Starting each non-operating fan group from the control room, and verifying that each fan group operates for at least 15 minutes, and 2)
Verifying a cooling water flow rate of greater than or equal to 550 gpm to each cooler.
b.
At least once per-18 months by verifying that each fan group starts automatically on a Safety Injection test signal.
SOUTH TEXAS - UNITS 1 & 2 3/4 6-16 Unit 1 - Amendment No. 30 l
Unit 2 - Amendment No. 21
CONTAINMENT SYSTEMS SPRAY ADDITIVE SYSTEM (Unit 1)
LIMITING CONDITION FOR OPERATION 3.6.2.4 The Spray Additive System shall be OPERABLE with:
a.
Three spray additive tanks each containing a volume of between 1061 and 1342 gallons of between 30 and 32% by weight NaOH solution, and b.
Three spray additive eductors each capable of adding NaOH solution from its associated spray additive tank to its Containment Spray System puinp flow.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTION:
With the Spray Additive System inoperable, restore tne system to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDGY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; restore the Spray Additive System to OPERABLE sta*.us within the next 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in COLD SHUTOOWN within the following 30 heurs.
SURVEILLANCE REQUIREMENTS 4.6.2.4 The Spray Additive System shall be demonstrated OPERABLE:
a.
At least once per 31 days by verifying that each valve (manual, power operated, or automatic) in the flow path that is not lecked, sealec; or otherwise secured in position, is in its correct position; b.
At least once per 6 months by:
1)
Verifying the contained solution volume in each spray additive tank, and 2)
Verifying the concentration of the NaOH solution by chemical
- analysis, c.
At least once per 18 months during shutdown, by verifying that each automatic valve in the flow path actuates to its correct position on a Containment Pressure High 3 test signal; and d.
At least once per 5 years by verifying:
1)
Each eductor suction flow rate is greater than or equal to 30 gpm using the RWST'as the test source to the eductor inlet, and under the following conditions:
SOUTH TEXAS - UNITS 1 & 2 3/4 6-17 Unit 1 - Amendment No. 30 Unit 2 - Amendment No. 21
b CONTAINHENT SYSTEMS 9
SURVEILLANCE REQUIREMENTS (Continued) a)
CS pump suction pressure is > 15 psig, b)
Valve CS0019A. B, or C, as applicable, is in the full open position, and c)
CS pump recirculation flow rate-to thu.RWST is 800 gpm i 100 gpm.
2)
The lines between the spray additive tank and the eductors are not blocked by verifying flow, SOUTH TEXAS - UNITS 1 & 2 3/4 6-18 Unit 1 - Amendment No. 30 Unit 2 - Amendment No. 21
CONTAINHENT SYSTEMS 3/4.6.3 CONTAINHENT !$0LAT10N VAtVES LlHITING CONDIT!0'. RR OPERAT10t' 3.6.3 The containment isolation valves shall be OPERABtE with isolation times less than or equal to the required isolation times.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTION:
With one or more of the isolation valve (s) inoperabit, maintain at least one isolation valve OPERABLE in each affected penetration that is open and:
a.
Restore the inoperable valve (s) to OPEftABLE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, or b.
Isolate each affected penetration within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> by use of at least one deactivated automatic valve secured in the isolation positten, or c.
Isolate each affected penetration within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> by use of at least one closed manual valve or blind flange, or d.
Be in at least HOT SIANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOC) within the following 30 nours.
SURVEILLANCE REQUIREMENTS 4.6.3.1 The isotation valves shall be demonstrated OPERABLE prior to returning the valve to service after maintenance, repair or replacement werk is performed on the valve or its associated actuator, control or power circuit by perform-ance of a cycling test, and verification of isolation time.
4.6.3.2 Each isolation valve shall be demonstrated OPERABLE during the COLD SHUTDOWN 0- REFUELING MODE at least once per 18 months by:
J a.
Verifying that on a Phase "A" Isolation test signal, each Phase "A" isolation valve actuates to its isolation position; b.
Verifying that on a Containment Ventilation Isolation test signal, each purge and exhaust valve actuates to its isolation position; and c.
Vecifying that on a Phase "B" Isolation test signal, each Phase "B" isolation valve actuates to its isolation position, d.
Verifying that on a Phase "A" Isolation test signal, coisicident with a low charging header pressure signal, tisat each seal injection valve actuates to its isolstion position.
4.6.3.3 The isolation time of each power-operated or automatic valve shall be determined to be within its limit when tested pursuant to Specification 4.0.5.
SOUTH TEXAS - UNITS 1 & 2 3/4 6-19 Unit 1 - Amendment No. 4 30 Unit 2 - Amendment No. 21 l
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CONTAINMENT SYSTEMS 4
3/4.6.4 COMBUSTIBLE GAS CONTROL HYOR00EN ANALYZERS LI'41 TING CONDITION FOR OPERATION 3.6.4.1 Two independent containment hycrogen analyzers shall be OPERABLE.
APPLICABILITY:
MODES 1 and 2.
ACTION:
a.
With one nydrogen analyzer inoperable, restore the inoperable analyzer
- to GPERABLE status within 30 days or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, b.
With both hydrogen analyzers inoperable, restore at least one analyzer to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least H01 STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
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'MRVEILLANCE REQUIREMENTS t
4.6.4.1 Each hydrogen analyzer shall be demonstrated OPERABLE by the performance of a CHANNEL CHECK at least once per 32 hours3.703704e-4 days <br />0.00889 hours <br />5.291005e-5 weeks <br />1.2176e-5 months <br />, an ANALOG CtlANNEL OPERATIONAL TEST at least once per 31 days, a channel OPERABILITY verffication at least once per 92 days on a STAGGERED TEST DASIS using sample gas contain-ing one volume percent hydrogen, balance nitrogen, and by performing a CHANNEL CAllBRATION at least once per 18 months using sample gas containing ten volume percent hydrogen, balance nitrogen, i
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SOUTH TEXAS - UNITS 1 & 2 3/4 6-20 Unit 1 - Amendment No. 30 Unit.2 - Amendment No. 21 l
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CONTilNPENY SYSTEMS EtE.11.11C HYDROGEN RECOM01NERS LIMI11NG CONDITION FOR OPERATION 3.6.4.2 lwo independent Hydrogen Recombiner Systems shall be OPERABLE.
APPLICABILITY:
MODES 1 and 2.
ACTION:
With one Hydrogen Recombiner System inoperable, restore the inoperable system to OPERABLE status within 30 dcys or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
SURVE.!LLANCE REQUIREMENTS 4.6.4.2 Each Hydrogen Recombiner System shall be demonstrated OPERABLE:
At least once per 6 months by verifying, during a Hydrogen Recombiner a.
System functional test, that the minimum heater sheath temperature increases to greater than or equal to 1000*F within 90 minutes at 52 kW.
Upon reaching 1000'F, increase the power setting to maximum power for 2 minutes and verify that the power meter readt greater than or equal-to 65 kW, and b.
At least once per 18 months by:
1)
Performing a CHANNEL CAllBRATION of all recombiner instrumenta-tion and control circuits, 2)
Verifyirg through a visual examination that there 1s no evidence of abnormal conditions-within the recombiner enclosure (i.e., loose wiring or structural connections, deposits of foreign materials, etc.), and 3)
Verifying the integrity of all heater electrical circuf *s by performing a resistance to ground test following the above required functional test.
The resisttnce to ground for any heater phase shall be greater than or equal to 10,000 ohms.
SOUTH TEXAS - UNITS 1 & 2 3/4 6-21 Unit 1 - Amendment No. 30 l
Unit 2 - Amendment No. 21 a.-.-
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CONTAINMENT SYSTEMS BASES l
CONTAINMENT VENTILATION SYSTEM (Continued) fore, the SITE BOUNDARY dose guideline of 10 CFR Part 100 would not be exceeded in the event of an accident during containment PURGING operation.
Leakage integrity tests with a maximum allowable leakage rate for contain-N at purge supply and exhaust supply valves will provide early indication of retM ient material seal degradation and will allow opportunity for repair before i
b was leakage failures could develop.
The 0.60 L leakage limit of Specifica-110 3.6.1.26.shallnotbeexceededwhentheleaEageratesdeterminedbythe hakage integrity tests of these valves are added to the previously determined total for all valves and penetrations subject to Type B and C tests.
3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS l
3/4.6.2.1 CONTAINMENT SPRAY $YSTEM The OPERABILITY of the Containment Spray System ensures that containment depressurization and cooling capability will be available in the event of a LOCA or steam line break.
The pressure reduction and resultant lower containment leakage rate are consistent with the assumptions used in the safety analyses.
The Containment Spray System and the Containment Cooling System both provide post-accident cooling of the containment atmosphere.
However, the Containment Spray System also provides a mechanism for removing iodine from the containment atmosphere and therefore the time requirements for restoring an inoperable Sprey System to OPERADLE status have been maintained consistent with that assigned other inoperable ESF equipment.
3/4.6.2.2 RECIRCULATION FLUID PH CONTROL SYSTEM The operability of the recirculation fluid pH control system ensures that there is sufficient trisoofum phosphate available in containment to guarantee a sump pH of > 7.0 during the recirculation phase of a postulated LOCA.- This pH level is required to reduce the potential for chloride induced 4 tress corrosion of austenitic stainless steel and assure the retention of iodine in the recirculating fluid.
The specified amounts of TSP will result in a recirculation fluid pH between 7.0 and 9.5.
3/4.6.2.3 CONT AINMENT COOLING SYSTEM The OPERABILITY of the Containment Coaling System ensures that:
(1) the containment air temperature will be maintained within limits during normal-operation, and (2) adequate heat removal capacity is available when operated in conjunction with the Containment-. Spray Systems during post-LOCA conditions.
STPEGS has three groups of Reactor Containment Fan Coolers with two fans in each group (total of six fans).
Five fans are adequate to satisfy the safety requirements including single failure.
SOUTH TEXAS - UN115 1 & 2 0 3/4 6-3 Unit 1 - Amendment No. 30 Unit 2 - Amendment No. 21 I
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CONTAINMENT S/STIMS BASES 3/4.6.2.4 SPRAYADDITIVE_SYSTij The OPERABILITY of the Spray Additive System ensures that sufficient NaOH is added to the containment spray and containment sump in the event of a LOCA.
The limits on NaOH volume and concentration ensure a pH value of between 7,5 and 10.0 for tne solution recirculated within containment after a LOCA.
This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.
The contained solution volume 11rrit includes an a110wance for solution not usable because of tank discharge line location or other physical characteristics.
These assumptions are consistent with the iodine removal j
efficiency assumed in the safety analyses.
-3/4.6.3 CONTAINMENT ISOLATION VALVES The OPERABILITY of the containment isolation valves ensures that the containment atmosphere will be isolated from the cutside environment in the event of a release of radioacthe material to the containment atmosphere or pressurization of the containment and is consistent with the requirements of General Design Criteria 54 through 57 of Appendix A to 10 CFR Part 50.
Containment isolation within the time limits specified for those isolation valves designed to close automatically ensures that the release of radioactive material to the environment will be consistent with the assumptions used in the analyses for a LOCA.
3/4.6.4 COMBUSTlRLE GAS CONTROL The OPERABILITY of the equipment and systems required for the detection and control of hydrogen gas ensures that this equipment will be available to maintain the hydrogen concentration within containment below its flammable limit during post-LOCA conditions.
Either recombiner unit is capable _of controlling the expected hydrogen generation associated with:
(1) zirconium-water reactions, (2) radiolytic decompositica of water, and (3) corrosion of metals within containment.
These Hydrogen Control Systems are consistent with the recommendations of Regulatory Guide 1.7, " Control of Combustible Gas Concentrations in Containment Following a LOCA," Revision 2, November 1978.
SOUTH TEXAS - UNITS 1 & 2 B 3/4 6-4 Unit 1 - Amendment No. 30 Unit 2 - Amendment No. 21
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