ML071140209
| ML071140209 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 04/17/2007 |
| From: | Katz B Southern California Edison Co |
| To: | Document Control Desk, NRC/NRR/ADRO |
| References | |
| Download: ML071140209 (69) | |
Text
{{#Wiki_filter:\\1 SOUTHERN CALIFORNIA Brian Katz EDISON April 17, 2007 Vice President An EDISON INTERNATIONAL Company U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001
SUBJECT:
San Onofre Nuclear Generating Station, Units 2 and 3 Docket Nos. 50-361 and 50-362 Proposed Change Number (PCN) 549 Application to Revise Technical Specifications Regarding Control Room Envelope Habitability in Accordance with TSTF-448, Revision 3, Using the Consolidated Line Item Improvement Process Gentlemen: In accordance with the provisions of 10 CFR 50.90, Southern California Edison (SCE) is submitting a request for an amendment to the Technical Specifications (TSs) for Facility Operating Licenses NPF-10 and NPF-15 for San Onofre Nuclear Generating Station, Units 2 and 3, respectively. The proposed amendment would modify TS requirements related to control room envelope habitability in accordance with TSTF-448, Revision 3, using the Consolidated Line Item Improvement Process. Enclosure 2 of this letter consists of Proposed Change Number (PCN) 549, which provides a description of the proposed changes, the requested confirmation of applicability, plant-specific verifications and a list of regulatory commitments made in this submittal. The attachments to PCN-549 provide the existing TS pages, the existing TS pages marked up to show the proposed changes, revised (clean) pages, and (for information only) TS Bases pages marked up to show the proposed changes. SCE requests that this amendment be issued effective as of the date of issuance, to be implemented within 60 days from the date of issuance. In accordance with 10 CFR 50.91, a copy of this application, with attachments, is being forwarded to the designated California Official. Ifyou have any questions or require additional information, please contact Linda Conklin at (949) 368-9443. Sincerely, P.O. Box 128 San Clemente, CA 92674-0128 949-368-9275 Fax 949-368-9881 Al 0 ýý_
Document Control Desk April 17, 2007
Enclosures:
- 1. Notarized Affidavits
- 2. Licensee's Evaluation Attachments A. Existing Pages, Unit 2 B. Existing Pages, Unit 3 C. Proposed Pages, Redline and Strikeout, Unit 2 D. Proposed Pages, Redline and Strikeout, Unit 3 E. Proposed Pages, Unit 2 F. Proposed Pages, Unit 3 G. Proposed Bases, Unit 2 (Information Only)
H. Proposed Bases, Unit 3 (Information Only) cc: B. S. Mallett, Regional Administrator, NRC Region IV N. Kalyanam, NRC Project Manager, San Onofre Units 2 and 3 C. C. Osterholtz, NRC Senior Resident Inspector, San Onofre Units 2 and 3 S. Y. Hsu, California Department of Health Services, Radiologic Health Branch
ENCLOSURE 1 NOTARIZED AFFIDAVITS
Enclosure 1 Page 1 of 2 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Application of SOUTHERN CALIFORNIA )) EDISON COMPANY, ET AL. for a Class 103 Docket No. 50-361 License to Acquire, Possess, and Use ) a Utilization Facility as Part of ) Amendment Application Unit No. 2 of the San Onofre Nuclear ) No. 250 Generating Station ) SOUTHERN CALIFORNIA EDISON COMPANY, et al. pursuant to 10CFR50.90, hereby submit Amendment Application No. 250. This amendment application consists of Proposed Change No. 549 to Facility Operating License No. NPF-10. Proposed Change No. 549 is a request to modify Technical Specification requirements related to control room envelope habitability in accordance with Technical Specification Task Force (TSTF)-448, Revision 3, using the Consolidated Line Item Improvement Process. State of California County of San Diego Brian Katz, Vice Pre~tdent Subscribed and sworn to (ae d) before me on this iI-i day of 421 ,1"2oo", bypesnal kncr-o personally known to me or proved-tonme-on the-basis f stisactry vidence to be the person who appeared before me. DAWN A. FARL Commi~ssion # 1623105
- Notary Public.- Calitorrio
~c~i&tWA4 AFLQJJ Nota6ry PubIi c
Enclosure 1 Page 2 of 2 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Application of SOUTHERN CALIFORNIA ) EDISON COMPANY, ET AL. for a Class 103 ) Docket No. 50-362 License to Acquire, Possess, and Use ) a Utilization Facility as Part of ) Amendment Application Unit No. 3 of the San Onofre Nuclear ) No. 235 Generating Station SOUTHERN CALIFORNIA EDISON COMPANY, et al. pursuant to 10CFR50.90, hereby submit Amendment Application No. 235. This amendment application consists of Proposed Change No. 549 to Facility Operating License No. NPF-15. Proposed Change No. 549 is a request to modify Technical Specification requirements related to control room envelope habitability in accordance with Technical Specification Task Force (TSTF)-448, Revision 3, using the Consolidated Line Item Improvement Process. State of California County of San Diego Brian Katz, Vice Predent Subscribed and sworn to (or-affiimed) before me on this /7-- day of A---Y:, ý , ?-oo-7, by V-Y'a v &f z-personally known to me ef-pfeve6d-te me on hcbasis of satisfacteFy-evidenee to be the person who appeared before me. J*/__* Commm:l* # 16231015 1N0n
- a. Pub -Ca"'*f'f Notary Public
ENCLOSURE 2 LICENSEE'S EVALUATION PCN 549 Control Room Habitability
1.0 DESCRIPTION
2.0 ASSESSMENT 2.1 Applicability of Published Safety Evaluation 2.2 Optional Changes and Variations 2.3 License Condition Regarding Initial Performance of New Surveillance and Assessment Requirements
3.0 REGULATORY ANALYSIS
3.1 No Significant Hazards Consideration Determination 3.2 Commitments 4.0 ENVIRONMENTAL EVALUATION Attachments A. Existing Pages, Unit 2 B. Existing Pages, Unit 3 C. Proposed Pages, Redline and Strikeout, Unit 2 D. Proposed Pages, Redline and Strikeout, Unit 3 E. Proposed Pages, Unit 2 F. Proposed Pages, Unit 3 G. Proposed Bases, Unit 2 (Information Only) H. Proposed Bases, Unit 3 (Information Only)
1.0 DESCRIPTION
The proposed amendment would modify technical specification (TS) requirements related to control room envelope habitability in TS 3.7.11, "Control Room Emergency Air Cleanup System (CREACUS)" and TS Section 5.5, "Administrative Programs." The changes are consistent with Nuclear Regulatory Commission (NRC) approved Industry/Technical Specification Task Force (TSTF) STS change TSTF-448, Revision 3. The availability of this TS improvement was published in the Federal Register on January 17, 2007 as part of the Consolidated Line Item Improvement Process (CLIIP). 2.0 ASSESSMENT 2.1 Applicability of Published Safety Evaluation Southern California Edison (SCE) has reviewed the safety evaluation dated January 17, 2007 as part of the CLIIP. This review included a review of the NRC staff's evaluation, as well as the supporting information provided to support TSTF-448. SCE has concluded that the justifications presented in the TSTF proposal and the safety evaluation prepared by the NRC staff are applicable to San Onofre Nuclear Generating Station, Units 2 and 3, and justify this amendment for the incorporation of the changes to the San Onofre TSs. 2.2 Optional Changesand Variations SCE is proposing one deviation from the TS changes described in the TSTF-448, Revision 3. The proposed TSs, consistent with TSTF-448, delete Surveillance Requirement 3.7.11.4, which requires a demonstration that the Control Room Emergency Air Cleanup System can pressurize the control room to 1/8" water gauge as compared to the atmosphere. Consistent with this change, SCE proposes to delete reference to the 1/8" criterion in the TS Bases as well as the air exchange rate, as these criteria could be confused as requirements for OPERABILITY of the system. In addition, TSTF-448 also allows exceptions to the testing methods and frequencies described in Regulatory Guide 1.197, Regulatory Positions C.1 and C.2. SCE proposes the following exception: Appropriate application of ASTM E-741 shall include the ability to take minor exceptions to the test methodology. These exceptions shall be documented in the test report. This exception is necessary because the required testing methodology, ASTM-E741, was not originally intended for nuclear power plant control room envelope testing. Some minor exceptions from the standard are necessary and are usually determined by the test vendor. NEI 99-03, Revision 1, Appendix EE discusses exceptions typically Page 1 of 3
taken by ASTM E-741 test vendors. While not an all-inclusive list, the exceptions listed in Appendix EE provide examples of the type of exceptions that will be allowed by the proposed Control Room Envelope Habitability program. Any exceptions to the test methodology will be documented in the individual test report to ensure that the testing performed is in accordance with the Control Room Envelope Habitability Program requirements of proposed Technical Specification 5.5.2.16.c. SCE is not proposing any variations or deviations from the applicable parts of the NRC staff's model safety evaluation dated January 17, 2007. Section 3.3 of the NRC model safety evaluation provided several different evaluations that would be applicable to different sites due to site-specific physical configurations or licensing bases. The evaluations in Section 3.3 of the NRC model safety evaluation that are applicable to San Onofre Units 2 and 3 are Evaluation 1, Evaluation 4, Evaluation 6, and the final paragraph of Section 3.3. 2.3 License Condition Regarding Initial Performance of New Surveillance and Assessment Requirements SCE proposes the following as a license condition for the San Onofre Units 2 and 3 licenses to support implementation of the proposed TS changes: Upon implementation of Amendment No. XXX adopting TSTF-448, Revision 3, the determination of control room envelope (CRE) unfiltered air inleakage as required by SR 3.7.11.4, in accordance with TS 5.5.2.16.c.(i), the assessment of CRE habitability as required by Specification 5.5.2.16.c.(ii), and the measurement of CRE pressure as required by Specification 5.5.2.16.d, shall be considered met. Following implementation: (a) The first performance of SR 3.7.11.4, in accordance with Specification 5.5.2.16.c.(i), shall be within the specified frequency of 6 years, plus the 18-month allowance of SR 3.0.2, as measured from May 18, 2004, the date of the most recent successful tracer gas test, as stated in the September 17, 2004 letter response to Generic Letter 2003-01, or within the next 18 months if the time period since the most recent successful tracer gas test is greater than 6 years. (b) The first performance of the periodic assessment of CRE habitability, Specification 5.5.2.16.c.(ii), shall be within 3 years, plus the 9-month allowance of SR 3.0.2, as measured from May 18, 2004, the date of the most recent successful tracer gas test, as stated in the September 17, 2004, letter response to Generic Letter 2003-01, or within the next 9 months if the time period since the most recent successful tracer gas is greater than 3 years. Page 2 of 3
(c) The first performance of the periodic measurement of CRE pressure, Specification 5.5.2.16.d, shall be within 6 months.
3.0 REGULATORY ANALYSIS
3.1 No Significant Hazards Consideration Southern California Edison (SCE) has reviewed the proposed no significant hazards consideration determination (NSHCD) published in the Federal Register as part of the Consolidated Line Item Improvement Process (CLIIP). SCE has concluded that the proposed NSHCD presented in the Federal Register notice is applicable to San Onofre Nuclear Generating Station, Units 2 and 3, and is hereby incorporated by reference to satisfy the requirements of 10 CFR 50.91(a). 3.2 Commitments SCE is making no formal commitments that would derive from NRC approval of the proposed amendment. 4.0 ENVIRONMENTAL EVALUATION SCE has reviewed the environmental evaluation included in the model safety evaluation dated January 17, 2007, as part of the CLIIP. SCE has concluded that the staff's findings presented in that evaluation are applicable to San Onofre Nuclear Generating Station, Units 2 and 3, and the evaluation is hereby incorporated by reference for this application. Page 3 of 3
PCN 549 Attachment A (Existing Pages) SONGS Unit 2
CREACUS 3.7.11 3.7 PLANT SYSTEMS 3.7.11 Control Room Emergency Air Cleanup System (CREACUS) LCO 3.7.11 Two CREACUS trains shall be OPERABLE.
------------------------ NOTE---------------------------
The control room boundary may be opened intermittently under administrative control. APPLICABILITY: MODES 1, 2, 3, 4, 5, and 6, During movement of irradiated fuel assemblies. ACTIONS ------------------------ NOTES--------------------------
- 1. The provisions of LCO 3.0.4 are not applicable when entering MODES 5, 6, or defueled configuration.
- 2. Each Unit shall enter applicable ACTIONS separately.
CONDITION REQUIRED ACTION COMPLETION TIME A. One CREACUS train A.1 Restore CREACUS train 14 days inoperable, to OPERABLE status. B. Two CREACUS trains B.1 Restore control room 24 hours inoperable due to boundary to OPERABLE inoperable control status. room boundary in Modes 1, 2, 3, or 4. C. Required Action and C.1 Be in MODE 3. 6 hours associated Completion Time of Condition A or AND B not met in MODE 1, 2, 3, or 4. C.2 Be in MODE 5. 36 hours (continued) SAN ONOFRE--UNIT 2 3.7-24 Amendment No. 128,1 ,, 181 I
CREACUS 3.7.11 ACTIONS (continued) CONDITION REQUIRED ACTION COMPLETION TIME D. Required Action and D.1 Place OPERABLE Immediately associated Completion CREACUS train in Time of Condition A not emergency radiation met in MODES 5 or 6, or protection mode. during movement of irradiated fuel OR assemblies. D.2.1 Suspend CORE Immediately ALTERATIONS. AND D.2.2 Suspend movement of Immediately irradiated fuel assemblies. E. Two CREACUS trains E.1 Suspend CORE Immediately inoperable in MODES 5 ALTERATIONS. or 6, or during movement of irradiated AND fuel assemblies. E.2 Suspend movement of Immediately irradiated fuel assemblies. F. Two CREACUS trains F.1 Enter LCO 3.0.3. Immediately inoperable in MODE 1, 2, 3, or 4 for reasons other than Condition B. SAN ONOFRE--UNIT 2 3.7-25 Amendment No. +/-2-7-,---28,177 I
CREACUS 3.7.11 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.7.11.1 Operate each CREACUS train for Ž 2 hours. 31 days SR 3.7.11.2 Perform required CREACUS filter testing in In accordance accordance with Ventilation Filter Testing with the VFTP Program (VFTP). SR 3.7.11.3 Verify each CREACUS train actuates on an 24 months actual or simulated actuation signal. SR 3.7.11.4 Verify each CREACUS train can maintain a 24 months positive pressure of > 0.125 inches water gauge, relative to the atmosphere during the emergency radiation state of the emergency mode of operation. SAN ONOFRE--UNIT 2 3.7-26 Amendment No. 27,-128,177 1
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.15 Containment Leakage Rate Testing Program (Continued) The provisions of Surveillance Requirement 3.0.2 do not apply to the test frequencies specified in the Containment Leakage Rate Testing Program. However, test frequencies specified in this Program may be extended consistent with the guidance provided in NEI 94-01, "Industry Guideline For Implementing Performance-Based Option Of 10CFR 50, Appendix J," as endorsed by Regulatory Guide 1.163. Specifically, NEI 94-01 has these provisions for test frequencies extension:
- 1. Consistent with standard scheduling practices for Technical Specifications Required Surveillances, intervals for recommended Type A testing may be extended by up to 15 months. This option should be used only in cases where refueling schedules have been changed to accommodate other factors.
- 2. Consistent with standard scheduling practices for Technical Specifications Required Surveillances, intervals for the recommended surveillance frequency for Type B and Type C testing may be extended by up to 25 percent of the test interval, not to exceed 15 months.
The provisions of Surveillance Requirement 3.0.3 are applicable to the Containment Leakage Rate Testing Program. SAN ONOFRE--UNIT 2 5.0-20b Amendment No. 144
Attachment B (Existing Pages) SONGS Unit 3
CREACUS 3.7.11 3.7 PLANT SYSTEMS 3.7.11 Control Room Emergency Air Cleanup System (CREACUS) LCO 3.7.11 Two CREACUS trains shall be OPERABLE.
---------------------- NOTE---------------------------
The control room boundary may be opened intermittently under administrative control. APPLICABILITY: MODES 1, 2, 3, 4, 5, and 6, During movement of irradiated fuel assemblies. ACTIONS ---------------------- NOTES--------------------------
- 1. The provisions of LCO 3.0.4 are not applicable when entering MODES 5, 6, or defueled configuration.
- 2. Each Unit shall enter applicable ACTIONS separately.
CONDITION REQUIRED ACTION COMPLETION TIME A. One CREACUS train A.1 Restore CREACUS train 14 days inoperable, to OPERABLE status. B. Two CREACUS trains B.1 Restore control room 24 hours inoperable due to boundary to OPERABLE inoperable control status. room boundary in Modes 1, 2, 3, or 4. C. Required Action and C.1 Be in MODE 3. 6 hours associated Completion Time of Condition A or AND B not met in MODE 1, 2, 3, or 4. C.2 Be in MODE 5. 36 hours SAN ONOFRE--UNIT 3 3.7-24 Amendment No. 117,15°168, 172
CREACUS 3.7.11 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME D. Required Action and D.1 Place OPERABLE Immediately associated Completion CREACUS train in Time of Condition A not emergency radiation met in MODES 5 or 6, or protection mode. during movement of irradiated fuel OR assemblies. D.2.1 Suspend CORE Immediately ALTERATIONS. AND D.2.2 Suspend movement of Immediately irradiated fuel assemblies. E. Two CREACUS trains E.1 Suspend CORE Immediately inoperable in MODES 5 ALTERATIONS. or 6, or during movement of irradiated fuel AND assemblies. E.2 Suspend movement of Immediately irradiated fuel assemblies. F. Two CREACUS trains F.1 Enter LCO 3.0.3. Immediately inoperable in MODE 1, 2, 3, or 4 for reasons other than Condition B). SAN ONOFRE--UNIT 3 3.7-25 Amendment No. 44-1,168
CREACUS 3.7.11 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.7.11.1 Operate each CREACUS train for 2 2 hours. 31 days SR 3.7.11.2 Perform required CREACUS filter testing in In accordance accordance with Ventilation Filter Testing with the VFTP Program (VFTP). SR 3.7.11.3 Verify each CREACUS train actuates on an 24 months actual or simulated actuation signal. SR 3.7.11.4 Verify each CREACUS train can maintain a 24 months positive pressure of Ž 0.125 inches water gauge, relative to the atmosphere during the emergency radiation state of the emergency mode of operation. SAN ONOFRE--UNIT 3 3.7-26 Amendment No. ++-T,168 I
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.15 Containment Leakage Rate Testing Program (Continued) The provisions of Surveillance Requirement 3.0.2 do not apply to the test frequencies specified in the Containment Leakage Rate Testing Program. However, test frequencies specified in this Program may be extended consistent with the guidance provided in NEI 94-01, "Industry Guideline For Implementing Performance-Based Option Of 10CFR 50, Appendix J," as endorsed by Regulatory Guide 1.163. Specifically, NEI 94-01 has these provisions for test frequencies extension:
- 1. Consistent with standard scheduling practices for Technical Specifications Required Surveillances, intervals for recommended Type A testing may be extended by up to 15 months. This option should be used only in cases where refueling schedules have been changed to accommodate other factors.
- 2. Consistent with standard scheduling practices for Technical Specifications Required Surveillances, intervals for the recommended surveillance frequency for Type B and Type C testing may be extended by up to 25 percent of the test interval, not to exceed 15 months.
The provisions of Surveillance Requirement 3.0.3 are applicable to the Containment Leakage Rate Testing Program. SAN ONOFRE--UNIT 3 5. 0-20b Amendment No. 135
Attachment C (Proposed Pages) (Redline and Strikeout) SONGS Unit 2
CREACUS 3.7.11 3.7 PLANT SYSTEMS 3.7.11 Control Room Emergency Air Cleanup System -(CREACUS) LCO 3.7.11 Two CREACUS trains shall be OPERABLE.
------ -NT-------------------------------
The control room *nvoboundary may be opened intermittently under admiKi*Yi-tative control. APPLICABILITY: MODES 1, 2, 3, 4, '5, and 6, During movement of irradiatedfuel assemblies. ACTIONS NOTES
- 1. The provisions of LCO 3.0.4 are not applicable when entering MODES 5, 6, or defueled configuration.
- 2. Each Unit shall enter applicable ACTIONS separately.
CONDITION REQUIRED ACTION COMPLETION TIME A. One CREACUS-tyrain A.1 Restore CREACUS train 14 days
,nnnPrihle'fnr* to OPERABLE status.
ro**n~in~her* t han B.- l O'ne Bo. -I B-'P n.o'more B 7-1nitiate'actToý7t j~me iatl C UiS tains pplement-iti ating inoperable 1iw. to inoperable RE ontrarol i .. reom boundary in Modes 1, 2, 3, or 4. r B'
*:2 77*T-V6r Lt qat fin""
*ymi h~u 42*-ý,
~dons ens ure~CE_
~ccpa nt,ýex posu r*6sto
- _ . *adi o! oql cali. ,
Sceml ca and smoke B.47 -Restore eREfi-t-tr ,, 90dayos eom. bou nd~ry ito (continued) OPERABLE status. SAN ONOFRE-UNIT 2 3.7-24 Amendment No. 128,17?, !&1-
CREACUS 3.7.11 ACTIONS (continued),, CONDITION REQUIRED ACTION COMPLETION TIME C. ,Required Action and C.1 Be in MODE 3. 6 hours associated Completion Time-of ConditionWA or AND Blnot-met in MODE 1, 2,
-3, or4. C.2 Be in MODE 5. 36 hours D. Required 'Action and D.1 Place OPERABLE Immediately associated Completion CREACUS train in Time of-:Condition A not emergency radiation met in MODE-S 5 or 6, or protection mode.
,during movement 6f irradiated fuel OR assemblies.
D.2.1 Suspend CORE Immediately,,.;,, ALTERATIONS.: AND D.2.2 Suspend movement of Immediately irradiated fuel assemblies.'r-E. Two CREACUS trains E.1 Suspend CORE, Immediately inoperable in MODES 5 ALTERATIONS.- or.6,. or during
- movement of irradiated AND fuel assemblies.
E.2 Suspend-movement of Immediately OR r,7nassembl irrad iated ies. f-uel O.uneor-more CREACUS aels tra ns inoperable due
*oitan i noperabl e:.CRE
-bounda'r y ,in' MODE' 5 or 6 'ordurinq movemen orraae (continud)
SAN ONOFRE-UNIT 2 3.7-25 Amendment No. 2-7,-281- 7
CREACUS 3.7.11 ACTIONS (continued) CONDITION.REQUIRED ACTION COMPLETION TIME F. Two CREACUS trains F.1 Enter LCO 3.0.3. Immediately inoperable in MODE 1, 2, 3,-or.4 for reasons other than Condition B.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.7.11.1 Operate each CREACUS train for Ž :22 hours. 31. days SR 3.7.11.2 Perform required CREACUS filter testing -in In accordance accordance with Fh Ventilation Filter with the VFTP r Testing Program (VFTP). SR 3.7.11.3 Verify each CREACUS train actuates -on an' 24 months actual-or simulated actuation signal. SR 3.7.11.4 e r.rormdrequ6Hafn*ce
-aketesin, accordantwith'the- i th 'the S- eaKaoqeteslnqna
,im n
_____________ 6_H______________________n ;ontrbl.,o o S ,erfyeate L the atrain can maintain all - am 24 pitive preissur 6f t 0.125 i661hes wtater X~i~blt the emergeney radiation state of ýthe mnh qem~gney made of operation. SAN ONOFRE--UNIT 2 3.7-26 Amendment No. ,27,128,17-T
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued)* 5.5.2.15 Containment Leakage Rate Testing Program (Continued) The provisions of Surveillance Requirement 3.0.2 do not apply to the test frequencies specified in the:Containment Leakage Rate' Testing Program. However, test frequencies specified in this Program may be extended consistent with-the guidance provided in NEI 94-01, "Industry Guideline For Im-plementing Performance-Based Option Of 10CFR 50, Appendix J," as-endorsed by Regulatory Guide' 1.163. Specifically, NEI 94-01 has-these provisions for test. . frequencies extension:
- 1. Consistent with standard scheduling practices for Technical Specifications Required Surveillances, intervals for recommended Type-A testing may be extended by up to 15 months. This option should be used only in cases where refueling schedules have been changed to accommodate other factors.
- 2. Consistent with standard scheduling practices for.
Technical Specifications Required Surveillances, intervals for the recommended 'surveillance frequency for Type B and Type C testing may be-extended by up to,25-percent of the test interval, not'to exceed 15 months.,] The provisions of Surveillance Requirement 3.0.3 are applicable to the Containment Leakage Rate Testing Program. 55.? Control:- Romnve lope Habitabil1tyfProgram e '(CRE) Habi'tabi' it-P ociram shall`be , establ ished -'and imDl emented .to, ensure~thath:CRE habi tabi i tvdi,'
- ainta ned 'such that;i'w- th'ýan OPERABLE' Control 'Room-
'Vl iEmrerency Air lean u- System (CREACUS) ;CRE.*occupant s -ican :control .t66 hreactor a fel.y'.:in'u normal.-conditions-and 'intainiit*i n *af*-s condition or _a chemi call -release, _
w evenIt,'hazardous o cal, mmokeo'% a enge.-,The proqram shal 1e that adeguate ,radi ion tnsure roteetion'is" provided to permi
- Jder*de~qn:ba~saccldentý
-* t, access ýand .occu (BA*odit-ions ancyof.the .CRE
- with'out'.Iersonne receivilnchradiation exposures in *excess of 5',remn total -effeCtiVe ose ýeQuilvalentý:(ýTEDE),Xfor.At e :durati on-,'of .the acci*dent' ,.",-he f
- ..--- roamsilcld!ci-nnfiguraetioij control and pre~ventiye mai ntenance.
(continued) SAN ONOFRE--UNIT 2 5.0-20b Amendment No. 4-44
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.elope 6Habitdboilit Prgr(am i icontilnued) auiremenetermi ninih Ahthe unfi I tered "a*i-
. ... 61ne'a ka'qe* ast*,thze Rb o-una arv-intgo thne','C'R.E-- n`,*accoraan ce
_-.*ne k;es* n-Tmn ana k:atnthe-Freauencies*,s Decdifed
-~etosC'V l-n~d;,Cý.'2"'fReciulator'iw:Gui e.1;97..!
[Demonst ratir Conto Room" Envel de"Inteqritvy at .Ndlear, oeRatr'RevisionfO,.,'Mavy 2003 and~ii) assessin q CRE haliitabilltviat'y t heSreauencies,ýsiDeci e I n-!ecti ons mh av )Dictio*fes*ASTM i s e-741oshbe hcu de Phe ;abi 1it tv6 ni6exceinti r-ak ons'A' -f'~hd ýtest,~ mehdlový hs .xetossa edcmn~ted.i SMeasiiement.-at 'desicIn cat~ioqn '.-Of.thectRE;Dressure-
,relatirve to a I :Iý;ext eas-ad.iacent *toi;the :CREc-bo 'ndarv
,iuri nq -the .'ressurizat1onmo -eof.'operati on Dbv Lonejtrain 'of he'CREACUS. oDeratilnQ iat. the fl o6w trate reaui red>bvthe
,VFP reauencv -o'f--242*a:-a mon ths -on -a 'STAGGERED JEST
~ASIS. -The, resuits,--sýialjl -ýbe...ren ed an-d u~d.>pa.ti,
*he-_ 24Imonth_'assessment- of the-CRE:'boundary.2*
-,,-'Th'.obatiat v limits 'on unfil'tered :ai~r.in~lb kaoeAinto_
the"CRE imitsfsh~al 1;1be'st'a'ted inija manierkTl o'-a iw d rect #comDarison to'thlie -un-filt'ered 'air inleakaqe: measured Sb.V'?the*etestina ;srcrlbed rDraqraDh"'.*. 'Theiunfil.tered
.inleakaQe i mitforIdralolQicall:,chal lenQe's,is.the r,
nlea'kaq'e- f] ow rate a s's-med -i n:,,,t he gl i cen s i nq a s ianavSes of DBA ýconseabences. nfn vtered ~air . in e'akacie-1 imi ts~Oi'
-azardous i-chemilcal s' must iensure.-'that* exoosure;of, CRE
.ccuDants' to these hazards-wiýl lbe ithi ntheassumption
" 'he:ll censinq basis."
*-:::,*;*f ::>> #;*The :{prov i s i o ns,..o f,,S R ;:.0 are z{a D 11ca leo -,t e..
SRl
~-37O;r1api abl 6 to',the
!FreauencieS Tora*ssess*ina CCREhabitabilitv-'determininci CRE*-unfiltered-tinldaka *ce ýiid ýmeasurinqc*CRE Dbressure_:and assessinq the2CREbobbundayasrrequired -by
* " *""'"d-d, ,.-es *-~ectlve--lV N
SAN ONOFRE-UNIT 2 5.0-20C Amendment No. +44
Attachment D (Proposed Pages) (Redline and Strikeout) SONGS Unit 3
CREACUS 3.7.11 3.7 PLANT SYSTEMS 3.7.11 Control Room Emergency Air Cleanup System!*(CREACUS) LCO 3.7.11 Two CREACUS trains shall be OPERABLE. The control room vl RE)E'boundary may be opened
!pbj intermittently un*&d niihtrative control.
APPLICABILITY: MODES 1, 2, 3, 4, 5, and 6, During movement of irradiated fuel assemblies. ACTIONS ---------------------- -- NOTES ------------------------
- 1. The provisions of LCO 3.0.4 are not applicable when entering MODES 5, 6, or defueled configuration.
- 2. Each Unit shall enter applicable ACTIONS separately.
CONDITION REQUIRED ACTION- COMPLETION TIME A. One CREACUS-train A.1 Restore CREACUS train 14 days innnpr.hlp~*hI to OPERABLE status.
* *n* f hr*than =
Condition,,B.- B. -Twe One ore Intmmediately inoperable i'i,,n to inoperable CRE actrlionsý ioeem boundary in Modes _ .. 1, 2, 3, or 4. AN"-
"2 7TVeri fy mitiqqai--
occduant exposu esto r diooical ,i chemi cal and smoke
~~hazar'd swil1 not
- exceed li*,mits_
B. + S Restore -e e -tro2 h ours ' - '90--days oieem boulndary to (continued) OPERABLE status.c SAN ONOFRE-UNIT 3 3.7-24 Amendment No. 17-*168, 17--Z
CREACUS 3.7.11 ACTIONS (continued) _--.______________ CONDITION REQUIRED ACTION COMPLETION TIME C. Required Action and C.1 Be in MODE 3. 6 hours associated Completion Time of-Condition-A or AND B not met in MODE 1, 2, 3, or 4. C.2 Be in MODE 5. 36 hours associatedAction D. Required and Completion D.1 Place OPERABLE Immediately CREACUS train in Time of Condition A emergency radiation MODE& 5 protection mode. or 6,metor induring not movement of irradiated OR fuel assemblies., D.2.1 Suspend COREý. - Immediately: ALTERATIONS. AND D.2.2 Suspend movement of Immediately irradiated -fuel assembl i es. ' E. -Two CREACUS trains E.1 Suspend CORE- '.Immediately inoperable in MODES 5 ALTERATIONS., or 6, or during. movement of irradiated AND fuel assemblies. E.2 Suspend movement of Immediately OR irradiated -fuel assemblies.-- Xtrains-, noperable.,,due. io an.Jinoperable *CRE boundary-in i*MODE I5 or.
.:or_ durinq movement o0f:'iuradiated'fe lTne a§semblies' SAN ONOFRE-UNIT 3 3.7-25 Amendment No. 117,-16 S,W4
CREACUS 3.7.11 ACTIONS (continued). CONDITION REQUIRED ACTION- COMPLETION TIME F. 'Two CREACUS trains F.1 Enter LCO 3.0.3. Immediately inoperable in MODE 1, 2, 3, or 4 for reasons other than Condition B. SURVEILLANCE REQUIREMENTS SURVEILLANCE -FREQUENCY SR 3.7.11.1 Operate each CREACUS train for >,2 hours. 31 days' SR 3.7.11.2 Perform requiredJEACUS filter testing in In accordance accordance with tthe Ventilation Filter with the VFTP Testing Program (VFTP). SR 3.7.11.3 Verify each CREACUS train actuates on an 24 months actual or simulated actuation signal. SR 3.7.11.4 Perform :reQulred CREunfiltered air 24 ,, , I inlieakaqe.testi nq-'i n -accordance wi th ccordance wi th athe
,ontrol Room, , j i, ,' ,,bitabi Ij,,heý.*Conram
.,o-_Em.e~yeach. CREACUS train-ean 'Room -Enve obe
_maintain a pasitive. Pressure 6f t-0:125 Habi'ta4bi' ity
*inche s atoýr_ gauqe,_ relati'fc to the oga m
.atmcsphcre'during thamergec radiation state of the emergency made of operation.-
SAN ONOFRE--UNIT 3. 3.7-26 Amendment No. 1-7,168, 1721
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.15 Containment Leakage Rate Testing Program (Continued) The provisions of Surveillance Requirement 3.0.2 do not apply to the test frequencies specified in the Containment Leakage Rate in this in Testing.-Program. Programmay be extended However, consistent with the specified test frequencies guidance provided NEI 94-01, "Industry Guideline For Implementing Performance-Based Option Of IOCFR'50, Appendix J," as endorsed by Regulatory Guide 1.163. Specifically, NEI 94-01 has these provisions for test frequencies extension:
- 1. Consistent with standard scheduling practices for Technical Specifications Required Surveillances, intervals for recommended Type A testing may be extended by up to 15 months. This option should be used only in cases-where refueling schedules have been changed to accommodate other factors. -*
- 2. Consistent with standard scheduling practices for Technical Specifications -Required Surveillances, intervals for the recommended -surveillance frequency for Type B and Type C testing may-be extended by up to 25 percent of the.test interval, not to exceed 15 months.
The provisions of Surveillance Requirement 3.0.3 are applicable to the Containment Leakage Rate Testing Program.
- RooEnvelope Habita fiity,,iPogram
**:*:'A- *ntrol -Room *nvel ove **)i 1:CE ity, Proq ram;s hall1 be6
'establ i shed -,and-i mol emented-`,-to;.ensur -t hat- CRE-'-habl tabl I i ty As -
mal ntai ned *such~tha't ;*!*with,:.an *OPERABILEControl ..Room .Emerqency-i;A* o.*- Cl eanup System'!-(CREACUS) GREocpantscan con thel t eracto6 safey* unde'norma cond tions:>andnmai ntai n ittJ ia safencond t on foI lIowi nq,-a ~d i oloqical-*event';-%]hazardous chemi ca *Irel ea s e;-,.,o r, smoke 'chalI enqe; ,The roqram 'hshali'ýiensur* that::adequate rad i at i n prot'ectl iK on s b},provided t'ooberml t access "and oc cu pan cy" of t he 'CRE i -nderdesnq iaccdenti (DBA conditi ons -without, bersonnel
-bas's .
....,receiv*nq adiation exposures :in !exces'slof*,'5'rehftoital ,effective
.do~sefeqivi TEDE) for'the duratio'nof 'the ac~idefit.--Jhe
(
': g ...a ,s lk 1incl ude.the **' L§-
.oll :
desvi ou a esiqnconditlonincluding-conTlquraton-(control niandud
*-*,(continued)
SAN ONOFRE--UNIT 3 5.0-20b Amendment No. 4-35.
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued),_ 0 op,._,aj1jýr .on
- 655 , 7 77F"*;
,:C'ontrol IftRo m*.Envel op *HaD ,t-ai l
- r gr.amk D:,tuo *1n e )
* )d 2 e t e r m i n e iU he linf 1leesar~,
n aea into tte CRE:*
- n accordance
-,lth.the'-testi nQ d tmethodsuan ecat s
.n;Sections._'-C*and2 o:,Roqulatory,:Guldel
* -.nmonstratl
- *~~ower ectr -*jontror-oom-EnveioDe v**isRewSloOHav:'200L,,*and ,Intecirjt'I* - iil --_ Nucle-a'r, tass~essl n
ýP',..'.Reactors2YRevsin0 TRE'habi tabi l i~tv'at7the Freauenci esnsuecified iJn ec*ions CjiTandLC .2 -ofRegulator -Gud
ý "77777hU6fo'llbwl ~n~ -i s -an xcept on to ScibWCLand C2o R gu latoryGuide J.-197,-:;Rev si on i0-:
i:- Ijtt-io6ný;'f: AS E-ý741;,ýha1 i -- id ' [the abl .ji tv '-to*take , =m ino r._exceDtilons *to --the :.ýtest 7__ý pfet hdold' I These exceptionsshal h .e Kd'cument__
- lýt't rerq.
ati>ve.to al] ,external-ar'eas' ad.iacent to.th&7CRE: tel bodndarv dJuri nqcptheDressuri zat on ,mode*,of 'oDerati on b*.bvone' trdi ni-of
*he'eCREACUS .,oDerati noratt*,he, flow ýrate 'reauired ?bvy:ithe
ýP,~TP--at aFreauencY of. 24 mionth son a .STAGGERED:'TEST,,,
BASIS.1J,-,The -results, sha1l 1 be'fftrended and used as,.para tL,ýo*of* Lhe_,,gimonth assessmientý'6f the CRE ,boun ary'.
* *-*-,*,,.:ý:.:._ *. * . t:.,-ý,,,The ,aou n ia tiveS. li mlits ,*on*u -_-nfJlte re-
*nt0*._ I fil rdair'inleakaoe'-into th6e CRE ':,'These 'I imits 'h'lYiýbe statedinaa nfmderiito&al 1 oz:
iectcomDarison -totheunfiltered ai r1inleakaqe *measuered bý'thestf§Ifnod~e'crb~ 'i Drar c.I e unfiltered air-tinl eakade:*l *mit" forM radiol Ocal chall enoes',,is -the
*"nl ea Katelf ow, ,astsumed J nthetrate I i cen'si no ba s s .anal vses _
- f,,DBA',conseauences.- I e~ed .'a r, inleakaoe li mi t s`fq Vzrdu chemicials ust'-ernsdre 'th'atex~o~sur~e"of -CREI._
occun)Iants *to~these' hazard~ *1jb9ihpfjassurnt o Nn .the e 1 censingq:bas'i3 --
- C>;,-..--"V prowv sions ;,oSR 3.U.2 are, aDI Icable I o)nth
-Freauencies'.foi. :assess i nq> CRE'habltabil I1tv ,-determl nino REu.unf 1tered i ni eaaaqe'.'a'nd -,easuri n ,,CRE:n: re'ssure and
,-ssessinncthe :CRE boundaryysrequIredby-par agraphs-c an dnd-, repbetv ey.,.-
SAN ONOFRE--UNIT 3 5.0-20C Amendment No. 4-3-5
Attachment E (Proposed Pages) SONGS Unit 2
CREACUS 3.7.11 3.7 PLANT SYSTEMS 3.7.11 Control Room Emergency Air Cleanup System (CREACUS) LCO 3.7.11 TwoICREACUS trains shall be OPERABLE.
------------ NOTE-------------------
-- I-------
The control room envelope (CRE) ýboundary may be opened I intermittently under administrative .control. APPLICABILITY: MODES 1, 2, 3, 4, 5, and 6, During movement of irradiated fuel assemblies. ACTIONS - - - - - - - -- OTES - N-- . -----------------------
- 1. The provisions of LCO 3.0.4 are not applicable when entering MODES 5, 6, or:defueled configuration.-
- 2. Each Unit shall enter-applicable ACTIONS separately.
CONDITION" REQUIRED ACTION, COMPLETION.*TIME A. One CREACUS train A.1 Restore CREACUS train 14 days inoperable for reasons' to OPERABLEstatus. other than Condition B. iB. One or more CREACUS B.1 Initiate action to Immediately trains inoperable due implement mitigating . to inoperable'CRE actions-.- boundary in Modes 1, 2, 3, or 4. AND B.2 Verify .mitigating 24 hours actions ensure CRE occupant exposures to radiological, chemical, and smoke hazards will~not exceed limits.- AND B.3 Restore CRE boundary 90 days to OPERABLE status. (continued) SAN ONOFRE-UNIT 2 3.7-24 Amendment No.
CREACUS 3.7.11 ACTIONS (continued) CONDITION REQUIRED ACTION COMPLETION TIME C. 'Required Action and C.1 Be in MODE 3. 6 hours associated Completion Time of Condition'A or AND B not met'in MODE 1. 2, 3, or 4. C.2 Be in MODE 5. .36 hours D. Required Action fand D.1 Place OPERABLE Immediately
- associated Completion CREACUS: train in Time of Condition A emergency radiation not met in MODE-5 protection mode.
or 6, or during p c m movement of irradiated OR fuel assemblies. D.2.1 Suspend CORE-. -Immediatelyý,1.-'-,- ALTERATIONS. AND D.2.2 Suspend movement of Immediately irradiated -fuel assemblies..' E. Two CREACUS trains E.1 Suspend CORE,-;-, -Immediately inoperable in MODE5 ALTERATIONS.- or 6,-or-during movement of irradiated AND, fuel assemblies.. E.2 " Suspend movement of Immediately . OR i rradi ated -fuel assemblies., One or more CREACUS trains inoperable due
-to an inoperable CRE-
- !boundary inMODE.5_or
-6, or during movement-of irradiated fuel assemblies.
(continued) SAN ONOFRE-UNIT 2 3.7-25 Amendment No.
CREACUS 3.7.11 ACTIONS (continued) CONDITION REQUIRED ACTION COMPLETION TIME F. :Two CREACUS trains F.1 Enter LCO 3.0.3. Immediately inoperable in MODE 1, 2, 3, or 4 for reasons-other than Condition B.- SURVEILLANCE :REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.7.11.1 Operate each CREACUS train for > 2 hours. 31 days SR 3.7.11.2 Perform required CREACUS filter testing in In 'accordance accordance with the Ventilation Filter with.the VFTP -1 Testing Program (VFTP). SR 3.7.11.3 Verify each CREACUS train actuates-on an 24 months actual or simulated actuation signal. SR 3.7.11.4 .:Perform required.CRE unfiltered air In accordance inleakagetesting in accordance with the with the" Control Room Envelope Habitability-Program. Control,-Room
- Envelope Habitability
-Program.
SAN ONOFRE--UNIT 2 3.7-26 Amendment No.
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Program§ and Manuals (continued) 5.5.2.15 Containment Leakage Rate Testing Program (Continued) The provisions of Surveillance Requirement 3.0.2 do not apply to the test frequencies specified in-the.Containment Leakage Rate
- Testing Program. However, test.frequencies specified in this Program may be extended consistent with the-guidance provided in NEI 94-01, "Industry Guideline For Implementing Performance-Based
- Option Of IOCFR 50, Appendix J," as endorsed by Regulatory Guide 1.163. Specifically, NEI 94-01 has these provisions for test frequencies extension:
- 1. Consistent with standard scheduling practices for Technical Specifications Required Surveillances, intervals for recommended Type A testing may be-extended by up to 15 months. This option should be used only in cases where refueling schedules have been changed to:
accommodate other factors.
- 2. Consistent with standardscheduling practices for Technical Specifications Required Surveillances, intervals for the recommended, surveillance frequency. for Type B and Type C testing may-be extended by up to 25" percent of the test interval, not to exceed 15 months.
The provisions of Surveillance Requirement 3.0.3 are applicable' to* the Containment Leakage Rate Testing:Program. 5.5.2.16 Control Room Envelope Habitability Program A Control Room Envelope (CRE) Habitability Program shall be-established and implemented to ensure-that CRE habitability is maintained such that, with an OPERABLE Control'Room Emergency Air' Cleanup System (CREACUS), CRE occupants can control the reactor safely under normal conditions and maintain it in a safe condition following a radiological event, hazardous chemical release, or a:., smoke'challenge. The program shall ensure that adequate radiation protection is provided to permit access and occupancy of the.CRE
**under~designbasis accident (DBA) conditions without personnel i'receiving radiation exposures in excess of 5 rem total effective
- dose equivalent (TEDE) for the duration of the accident. 'The.
program shall include the following elements:
- a. The definition of the CRE'and:,'the CRE boundary.
.b. Requirements for maintaining the CRE boundary in its design condition-including configuration control and_
preventive maintenance. (continued) SAN ONOFRE--UNIT 2 5.0-20b Amendment No.
Procedures, Programs, and Manuals I 5.5 5.5 Procedures, Programs, and Manuals (continued)". 5.5.2.16 Control Room:Envelope Habitability Program (Continued)
- c. Requirements for (i) determining the unfiltered air inleakage past the CRE boundary into the CRE in accordance with the testing methods and at the
...Frequencies specified in Sections C.1 and C.2eof Regulatory Guide 1.197,-"Demonstrating Control-Room
-:Envelope Integrity at Nuclear-Power-Reactors,"
Revision 0, May 2003, and (ii) assessing CRE habitability
-at the Frequencies specified in -Sections C.1 and C.2 of Regulatory-Guide 1.197, Revision 0.
The following is an exception to Sections C.1 and C.2 of Regulatory Guide 1.197, Revision 0. Appropri ate application ofASTM E-741'shall include the ability to take minor lexceptions to the test-methodology. These exceptions shall be documented in the test report.
- d. Measurement, at designated locations, of-the CRE pressure
- relative to all external areas adjacent to the CRE -
boundary during the pressurization mode of operation by,. one train of-the'CREACUS,-operating-at the flow rate. required by the VFTP, at a Frequency.of 24 months onwa STAGGERED TEST BASIS. The results shall be trended-and used asfpart of the 24 month-assessment of the CRE - boundary. ,
- e. The quantitative limits on unfiltered air inleakage-into the CRE. These limits shall--be stated in a manner to -
allow direct comparison to-the unfiltered air' inleakage measured by the testing described in paragraph c. The., unfiltered air inleakage limit for.radiological -. challenges is-the inleakage flow rate assumed~in'the licensing basis-analyses-of-DBA-'consequences. .Unfiltered air inleakage limits for hazardous chemicals must ensure that exposure of CRE-.occupants tO these hazards will be within the-assumptions in-the-licensing basis.,
- f. The provisions of SR 3.0.2 are applicable to the.-
Frequencies for assessing:CREhabitability, determiningY9
-CRE unfiltered inleakage,-and measuring CRE-pressure and-assessing the CRE boundary-as required by paragraphscc and d, respectively. --
SAN ONOFRE-UNIT 2 5.0-20c Amendment No.
Attachment F (Proposed Pages) SONGS Unit 3
CREACUS 3.7.11 3.7 PLANT SYSTEMS 3.7.11 Control Room Emergency-Air Cleanup System "(CREACUS) LCO 3.7.11 Two CREACUS trains shall .be OPERABLE.
.............-- NOTE -------------------------
The control room envelope (CRE)`boundary may be opened intermittently under administrative control. I APPLICABILITY: MODES 1, 21 3, 4, 5, and 6, During movement of irradiated fuel assemblies. ACTIONS - NOTES
- 1. The'provisions of LCO 3.0.4,are not applicable when entering MODES 5, 6, or defueled configuration.
- 2. Each Unit shall enter applicable ACTIONS separately.
-.CONDITION REQUIREDACTION. COMPLETION JTIME -
A. One CREACUS train A.1 Restore CREACUS train 14 days-inoperable for, to OPERABLE'status. reasons other'than Condition B. B. One Ior more CREACUS B.1 Initiate -action to Immediately,' trains inoperable due implement mitigating to inoperable CRE actions. boundary in Modes 1, -. 2, 3, or 4.- AND B_.2 Verify mitigating 24 hours actions ensure CRE' occupant exTosures to radiological; chemical, :and smoke hazards'will' not exceed limits. AND B.3 Restore CRE ,boundary 90 days to OPERABLE status.
-(Continued)
SAN ONOFRE--UNIT 3 3.7-24 Amendment No.-
CREACUS 3.7.11 ACTIONS (continued)
-CONDITION REQUIRED -ACTION- COMPLETION TIME C. Required Action and C.1 Be in MODE 3. 6 hours associated Completion Time of Condition A or AND B not-met inMODE 1, 2,3, or 4. C.2 Be in MODE 5. 36 hours D. Required Ac-tion.and D.1 Place OPERABLE Immediately
,associated Completion CREACUS-train -in Time of Condition A emergency_ radiation not-met in MODE5 protection mode.
or 6, or during movement of irradiated OR fuel assemblies. D.2.1 Suspend CORE Immediately. ALTERATIONS.- tey AND. . D.2.2 Suspend movement of Immediately: irradiated fuel assemblies. E. Two CREACUS trains E.1 Suspend CORE- Immediately inoperable in MODE 5 a ALTERATIONS... or 6, or during - movement of irradiated' AND fuel- assemblies. E.2 :- Suspend movement of Immediately OR irradiated-fuel assemblies., One or more`CREACUSa b-
- ,trains inoperable due _
to inoperable CRE boundary'in-MODE-5 or 6, or during movement of irradiated fuel assemblies., (continued) SAN ONOFRE--UNIT 3 3.7-25 Amendment No.
CREACUS 3.7.11 ACTIONS (continued)
.. CONDITION ( REQUIRED ACTION COMPLETION TIME F. -Two CREACUS trains F.1 Enter'LCO 3.0.3. Immediately-inoperable in MODE 1,
- 2. 3, or 4 for-reasons I other than Condition-B).
SURVEILLANCE REQUIREMENTS I - _ SURVEILLANCE FREQUENCY SR 3.7.11.1 Operate each CREACUS train for'>-2` hours. 31 days SR 3.7.11.2 -Perform required CREACUS filter testing in In accordance
.,accordance With the Ventilation'Filter with the VFTP Testing Program (VFTP).
SR 3.7.11.3 Verify eachýCREACUS train actuates7on an 24 months-actual or simulated actuation signal.- SR 3.7.11.4 Perform required CRE unfiltered air In accordance inleakage-testing in accordance with the with-the Control .Room Envelope Habitability-Program. Control Room Envelope Habitability Program SAN ONOFRE--UNIT 3 3.7-26 Amendment No.
- Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs; and Manuals (continued 5.5.2.15 Containment Leakage Rate Testing' Program (Continued)
The provisions-of Surveillance Requiremen6t 3.0.2 do not apply to the-test-frequencies specified inthe-Containment Leakage Rate Testing Program' *However, test-frequencies specified in this Program may be extended-consistent with the guidance provided in "NEI 94-01,".'ýIndustry Guideline-For Implementing Performance-Based Option-Of.10CFR150, Appendix J," as endorsed by Regulatory-Guide. 1.163. Specifically, NEI 94-01 has-these provisions -for test frequencies extension:
- 1. Consistent with standard scheduling practices -for Technical Specifications Required Surveillances, intervals for recommendedýType 1 A testing may be extended byup to 15 months. This-option should be used only in cases'where refueling schedules-have beentchanged to, accommodate other factors.-
- 2. Consistent with standard scheduling practices for.
Technical Specifications Required-Surveillances, intervals-for the recommended-surveillance frequency for Type.B and-Type C testing may-be extended by up to 25 percent of the test interval, not to exceed 15 months., The provisions of Surveillance Requirement 3.0.3 are applicable to the ContainmentILeakage Rate Testing Program. 5.5.2.16 Control Room Envelope Habitability.:Program A Control Room Envelope Habitability Program shall be established-and implementedto ensure that CRE-habitability is maintained such that, with an-OPERABLE'Control Room Emergency Air Cleanup System (CREACUS), CRE occupants can control-the reactor safely under - - normal conditionsiand maintain it-.in a-safe condition following a radiological'event, hazardous chemical release, or a smoke-.: challenge -- The'ýprogram shall ensure!that adequate radiation." protection ispýpovided to permit access and occupancy of the CRE under design-basis-accident (DBA),-conditions without personnel receiving radiation exposures in excess of 5-rem total effective dose equivalent;(TEDE) for-the duration of-the accident.- The program shal l include the foll owing elements:
- a. The'definition of the CRE-andjthe CRE boundary.
- b. Requirements-for maintaining-the CRE boundary in its design condition including configuration control and preventive maintenance.. - ..
(continued) SAN ONOFRE--UNIT 3 5.0-20b Amendment No.
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs;'and Manuals (continued)** 5.5.2.16 Control Room Envelope Habitability* Program '(Continued) _c, Requirements for (i) determining the unfiltered air inleakage past the CRE boundary into the CRE in accordance with the testing methods and at-the Frequencies specified in Sections'C.1 and C.2:of Regulatory.Guide 1.197,.-".Demonstrating Control Room Envelope Integrity at Nuclear:Power-Reactors," Revision
-0,-May 2003, and (ii) assessing-CRE habitability-at the Frequencies specified in Sections-C.1 and C.2 of
.o.Regulatory Guide 1.197, Revision 0.
The following is an exception *to Sections C.1 and C.2 of regulatdry Guide 1.197, Revision 0: Appropriate application of-ASTM E-741:shall include the ability to take minor -exceptions to the test
,methodology. These exceptions. shall-be documented in the test report.
- d. Measurement, at designated'locations, of the CRE pressure,
.relative to all external areas:adjacent to the CRE boundary during the pressurization mode of-operation by.
one.train of the CREACUS, operating at the flow.rate-. "
..required by the VFTP, at a Frequency of 24 months on a-
,STAGGERED TEST BASIS. The results shall be trended:and-used aslpart of the 24 month-assessment of the CRE boundary.
- e. The quantitative limit-s on unfiltered air-inleakage into.
the CRE.i These-limits shall'.be-stated .ina manner to allow direct comparison.to the unfiltered air inleakage measured by the testing described in paragraph c. -The
.unfiltered air inleakage.-limitfor radiological -
challenges is the inleakage flow rate assumed in the- _d licensing basis analyses of.-DBA -consequences._ Unfiltered-air inleakage limits for. hazardous chemicals-must ensure that exposure of CRE occupants to these.hazards will be within the assumptions in the-l icensing basiss.. ,
- . -:.,The provisions of SR 3.0.2 are-applicable to the
- -- - Frequencies for assessing. CRE-habitability, determining CRE unfiltered inleakage, 'and measuring CRE pressure and-
'assessing-the CRE boundary as -required by paragraphs c
"-and d, respectively. -
SAN ONOFRE--UNIT 3 5.0-20c Amendment No.
Attachment G (Proposed Bases Pages (For Information Only) SONGS Unit 2)
CREACUS B 3.7.11 B 3.7 PLANT SYSTEMS B 3.7.11 Control Room-Emergency Air Cleanup System .(CREACUS) BASES BACKGROUND The CREACUemnfl'Ir's a protected environment from which
.pt&eri-t b Cupants can control.the pn nl*!.vwnn jinrn~v' -1d rees of radioadti vi ty ;haz~rdoiis h-mcl
_5oke. The CREACUS consists of two indeDendent.-redundant trains -
- that rcuate1eci nd filter thei r -in the control room t-r -
10:funf~ilt-e'rd'aLi*.. Each CREACUS train consists-of emergency a al biroh'toibi i ng unit, emergency ventilation air supply unit, emergency isolation dampers, -and cooling *coils and two cabinet coolers per Unit. :,Each -emergency air conditioning-unit.includes a prefilter, a high efficiency particulate air
* (HEPA) filter, an activated carbon.adsorber sectjhn,*9.fr removal.. of 1 gaseous activity-i(principally i-odine Lodiries);>.ý..
- and a fan., A second bank of HEPA filters follows thei7..
adsorber section to collect- carbon fines. Each- emergency ventilation rhnn~dnr#Fr.hand air.supply unit:includes fan.- prefilter, HEPAdampers, Ductwork,rmotor-operated filter,' hdoo-S"*!*b-arlers, and instrumentation also form part of the system.-AirThd motor-operated dampers are provided for air - volume control and system isolation purposes. The.CRE-isth6 ýarea-~within',t-h&-e-6onf~ines ~ofj~he;'CRE+~bo-un`darv.'4
,thatcontains- *thes Daces'.thatcontrolroomooccuDants inhabit S-tocontrol ýothe, unitsdudrinq,.normal ..and ','accident, conditionsi.
1Thisarea encomDas es the-cont rol 'rooom. and ,mawdencomDas s other. 'non-critic'cal areas *t6owhicch'Yreauent Dersonnel access 6r continuoius*,occuiancvJ s not-i-netes sarw*.int h e eenteof.an acci dent..j TheIGRE, isIDro.6teIc Ited durinci' nor.maI-o6 e~ra iio In
'natural-bevents ,and 'accident* TconrCRE;boundary itions .,,The ii sthe tombination~o - f-alls,ý fl oor~ri6Jf.<duct i nc'.doors.-
be_:Denetrati ons_ ;and eaiil ment-that *Dhvsi dcal Ilv:form 'the 'CRE-.
.The6 OPERABILITY of the'>CRE-boundar:must be~malntal ned ;to ensure~thait~th inleakae of u~nfiItered airin to the CRE-,
Swil lnotý-exceed the inleakacqe assumed in nthe':lcensinq'basis ainal vses*of..es iqn .bs) S-a ccdent',(DBA) ý;conseauences to6iCRE
-*.- CCuDants,;*The CREý -and,:i~ts:ýboundary,.are:
abil. t .P~6 defined in,,the (continued) SAN ONOFRE--UNIT 2
) B 3.7-56 Amendment.No.127 06/28I9n
CREACUS B 3.7.11 BASES (continued) - BACKGROUND Uonreceipt o atuatng signal, normal air supply to (continued) the-atrl o RE is isolated, -and the stream of ventilation air-is recirculated1through the system's filter
-trains..-The prefilters remove-any large particles in the air to.prievent..excessiveloading-of-the HEPA filters and charcoal adsorbers. Continuous operation of each train for
..-.at -least 15 minutes per month verifies proper system
-operability.,
ý.There-are two.CREACUS operational:modes. Emergency mode is
.. an.operational mode when the control room is isolated to
.protect-operational -personnel-from radioactive exposure
_through-the duration of any one-of the postulated, limiting faults discussed in Chapter .15 UFSAR (Ref. 2). Ispiption modeis an' operational modewhen the'ccntral room,RE is isolated tboprotect'operational: personnel from toxic gasses and smoke.1 Actuation of.the CREACUS places the'system into either-of
- two separate-states of operation, depending on the
.initiation signal.- Actuation of the system to-either:the emergencymode or isolation mode of CREACUS operation.-_ -
closes the' unfiltered-outside-air intake and unfiltered: exhaust-dampers, 4einnt- E~tem for recirculation of control ro'am airair-ithin-th'KCRE through the redundant trains of HEPA an chFarol filtie`r. The emergency mode T06 initiaites-pressurizatio-n ofthe . euntr l-roe' CRE. Outside air- isadded to the air-being recirculated from-the eentelrom CRE. Pressurization:of the control roamr nplrpe s REminhimizes infiltration of
.unfiltered air IrIoug__the§.CRE
* ~~~ " -*bundarv fýom
" Vthe al * " iCRE .
surrounding areas of the bui, jacent*to= Lon h.g E The *Ceotre-roam CRE supply and the outside air-supply of
- the-normal control~-oom HVAC are~monitored by radiation and
*.-toxic-gas idetectors respectively.L One detector output above the setpoint-will cause actuation of the emergency mode or
-isolation mode as required.'.The, actions of the isolation
--mode'are more restrictive,.and will override the actions of the emergency mode of operation. However, toxic-gas and radiation events are not considered to-occur concurrently.
-- * -(continued)
SAN ONOFRE--UNIT 2 B 3.7-57 SAmendment No.127 06/28/99
CREACUS B 3.7.11 BASES (continued) BACKGROUND - i train, ill -pressiz*uHzeihe c.ntril,, ,,m I to at least (continued) Aeie ~ p anaiI exhag rate'~ e e 4A 2,,,p1. Od.- I.Or, , I- EL.a
-.1%
ru ... 4-pdUi *In .
-IIntainiiI the cRnrI r-om h bit**ale I s1_ I'iscussId in
*Redundant'recirculation trainsprovide the required
.filtration should :an excessi Ve pressure drop develop across the other Ifilter train. Normally-open isolation dampers are
.arranged in series pairs so that one damper's failure to shut-will not-.result -ina breach of-isolation. The CREACUS is designed in accordance with Seismic Category I requi remeots..
The CREACUS-is-desicined to maintain .h room-q*contrPl fi -t*-
.1- L--ne for 30 days of continuous occupancy after a .Design BasisLAccident,(DBA) without~exceedja5-re 1- dy dos5e tholee. i os ýquie alnt -*TED).
APPLICABLE JThe CREACUS components are arranged in redundantP safety" SAFETY ANALYSES - related ventilation trains. :jThe location-ref. components and,
*ducting within the control room-e1nv ; lope URE ensures an-
'adequate supply of filtered air to all areas requiring access.-
The CREACUS- provides airborne radiological protection for-the contrl room operators CRE'occuDants, as, demonstrated by
'the .. o"trdl 'et reom"o-E aeci ccupant dose analyses for. the most limiting design, basis:_loss -of coolant.accident: fission product release presented-in the UFSAR, Chapter 15 (Ref. 2).
-DosecalcUlations,-as specified In Unit 2/3 UFSAR :hap rA'L5
[(Reference2)*<,al 'S,2, 15B-5, Ap*. ,_dis only take credit for-.the HEPA-filters and charcoal:ads'orbers of the emergency
--recirculation 'air conditionindi n*it. The emergency "ventilation supply unit is"* g d:- t redited onl_ .-h
- conitributeing to the pressurization-of the control room to minimirh 1/8 inh water gauge poiiepssr (miu) to P-re.-.f -Mtunfiltered-inleakageaisndicated in Lhe.Unit 2/3 1UFSAR.
(continued) 41 SAN ONOFRE--UNIT'2 B 3.7-58 SF - 27Amendment No. 127 04/25/05
CREACUS B 3.7.11 BASES (continued)
-. *- - I. - t J M i mM APPLICABLE III SCI 353 U LA I~ U3-1 3L-- a U -1 CII3 U bce LIU L ECr SAFETY ANALYS ES -^2 ý I rj. - a U0 I A go ý ý14ý -1. 61 V I I W-1 (continued) A4 II.uFl A,R WAm, 4 0n12'z.1 PA4 Ain Id~'r~ Q R1AA *Q -
L.h.~<Pr~~oRt on 'nlmsmo ke-and:ha-ardou s
*hemi cal s to.the CRE.occupants.,`Tenls s aa ed ed i hRosEf-xceenei arqnazamiodous
'qi ,'hanemlca shtnotsraesul lcnestrase t thetxinabcil imtyiosrthe an
. RE--occupants ,to-conthrol-th'ereactor"eithe-frnom Atheý'.control The -worst case single active failure of a*component of the CREACUS, assuming a losseof offsite power, doesinot impair the-ability of the system tofperform its-design function.
The CREACUS satisfies Criterion 3 of the NRC Policy. Statement.' LCO Two independent and redundant trains of the CREACUS are required io be OPERABLE to ensure that at. least. one is, - available,1 assuming _th, asihngle ýctive failure disables the other Itrain. --Total system fai _'re', such a oss bf,'dt ifvn a sor froman noera bl e CRE Ionr could .result in-*a entrl _, r ree , e v exceedinqcja dose +fr-exeess _of ,5-rem .EDE'o.theý CE "ocuiplantsln the event of a large radioactive release. the a CREACUS rain is considered OPERABLE when thn.'- " nd ni vi AP1-omponenis*-ecessary -to control operator *.iifit-
,CREoccupant :exposure .are OPERABLE in both train,. A
- CREACUS-'mr'in is considered OPERABLE when the associated:
a..: Fan .i s OPERABLE;
- b. .- :restricting HEPA filters flow, and charcoal, adsorber ofare not excessively and are-capable performing their
-filtration functions; and
" (continued)
SAN ONOFRE--UNIT'2 B 3.7-59 Amendment No.127 n113+/-99
CREACUS B 3.7.11 BASES (continued) _ _ __ _ _ _ LCO(continued) c. '.-Ductwork, valves,
- circulation can be and dampers' areIf OPERABLE, maintained.;: an Emergency and air Isolation Damper is stuck';open,-the associated train ofCREACUS-may still be considered OPERABLE if the
-redundant damper iniseries with-theinoperable damper is closed with power-removed.. .
for -to- -e c-onsi ere-~OE LE,'
,:hde;*CRE~*ont u be malintai ned'-such,1that-CREoccupant'
* .df . m a'.oearqe1'rao *i rev ealeaseea oesetexcee ,tne
- 61culat~ed d6seýJn the lic ~nsinq bai;.osqec~n ~e
-1 or'-DBAs--*and,"-that,'CREF.occupants are-Drotected}.Trom
~azardo§t6ihe1diclsý6ahdjisrike'ý
" "* ' In a .. I t.n I II*.* I I*I* L. VI I I te' IdIIU lleý
- I IlJ occwt0I..undary III II*
bos . I{ II I I must be ma ta n e.d, I. ; ** IIl I I ncuInth Inte rity ethe walls, f1cers., ceeilings,' duetwcrk, and aecessd~ors.; The LCO is modified by a Note allowing the entr,-r e.m _E_ boundary to be opened I ntermittentlyunder administrative"'- , controls.i This note.,, y.or' ial i es to,-,o pe iii niqs.in t h'e CRE L boundatuythat_ can_.,be ra'pidly'restored to e-eir conidition,,. -su'ch as. d6or -hat~he'~s$2fioof.plu§ Ia' - acs ranhelsi For entry-and exit-through doors the :administrative
- control oLf the opening is_ performed- by the person(s) entering or 6exitinq tthe areaý." For-other openings, these controls zed and-consist of stationing a dedicated individual-at the openinq whois in continuous communicaion with the ,,,tr!ý,, ,l,, p the.CRE..
This-individual will ha"ve a to.. rapidly close the
.q'uiv. nt"-tb the
-- d conditior when a need for entrel roomqREzisolation is indicated.,
(conti+nued) SAN ONOFRE--UNIT 2 B3.7-60 SAmendment No.127 01/74ý-99
CREACUS B 3.7.11 BASES (continued) ___-_ _ __ _ __" APPLICABILITY In..MODES 11, -, 3 -a-,_- 4,5'andE6-'and udrlh-ng-movement oT rradiatedý`fuel .assemnblies the CREACUS must be OPERABLE to 1i v*, -ater e-pm u ,tremaln A h it h
. abit'abl during and following a DBA.
----:In MODES 5-and 6,-'the CREACUSiis required to cope-with the release from a rupture of a wasteogas tank.
-During movement of irradiated fuel assemblies, the CREACUS
-4must-hbe OPERABLE tn,,nn.,wp the.h,.rpl from l
*handling accident- ___g hovidnh rdi'atedftuel.
ACTIONS ACTION statements are modified-by-two NOTES. NOTE 1 says-
"Theprovisions of LCO 3.0.4 are not-applicable when "
entering MODES 5, 6, or defueled configuration."
"Specification 3.0.4 establishes that entry into an operational mode or other specified condition shall not,-be:..
made unless the-conditions:of-the-LCO are met. Applicability statement "During movement of irradiated fuel assemblies" ensures the OPERABILITY of both CREACUS trains
.,prior to the start of movement of--irradiated fuel- .
assemblies. " NOTE:2 says: "Each Unit 'Shall enter, applicable ACTIONS separatel,." CREACUS-is av shared system-between Unit 2 and Uni3 LCdoesn't address: the- oprtoa ituation 'when
'theýUni ts iare .indi fferent'-operationalMODES. Without this NOTE it may-not-be clear-what-ACTIONS should be taken.-"
ý(conti nued)
SAN ONOFRE--UNIT 2 73.7-61 Amendment No.1-2-, 128 ..?/5/0
CREACUS B 3.7.11 BASES (continued) ACTIONS A. (continued) . - I .
'With oneC ý,FAC ,an buay ~~~_ý ,npPb acio.. -- mustbe taken -to restore on t- wtJhi*1*4 ay**---Tshe 14 day AOT~is based-a probabilstic risk assessment'-that does not. require administrative controls rtoibeni.iplemented whena CREACUS train is taken out of service.:In thvie' Cndition, -the remaining OPERABLE CREACUS :b54Yfl riisj,-Adequate to perform nt,*l rom r, adiation .h'eCRE 66Cupant protection
- function.
*- -However, the overall reliability.is reducedbecausea
-i4-rgl-e failure in the OPERABLECREACUS train could result in lossof'CREACUS function.- :The.k"4 day Completion Time is
. based onthe low probabilityof-aDBA occurring during this time period, and the ability of -the -remaining train to provide the required capability'.
B. l' B. 2land' B'3 If the. control roomn bou-.dar 5_74 naperab! e in MODES 1,-2,:3,. Or-7, theý CRAGUS trains eannat 'Performthrntddi functions.
*AtI ns Iust Itakn, t. .rester1 an1OPERABLE.
cont.ol IrooM bo;IundAry wti 4 hours.ý Duringthe period comcnato~masucs(eens~ist64--with- the -intent of COW1). shoud be .tiize to .protect control! room operators from potentialthazards. such a§ radieaetive contamnination, toxic smoke; tecmperaturc -and rel6atiye humidity,an physical sccurity._ Prpandmauc hould be available I. ~ ~ to~ adresthes conernsforintentional and unintentional
, U 116,,
a111
%_1* I v,.# kIIIU.1 HI, I, I ,)' ,I1 WI IIw.w.I "41"., ,"JJI UJ i . ,..
reasoabl asedon, the,. e4wpra~abj 1 ty-of a Aocurn durngths im pridand, t.HEcuse of ccmnpcnsatery inmuear. *r-..... .. * ,_IThe ^*24 hour- .* !*I, CoMp!etian
- 1,' 1"Ti~me*rl* i s a typiceal ly 71,;
- _reasonabie timne to diagnosel, Pjaad=`-M Possibly repir and prolcm wih th cot-o room boundary.
testmos f :: the".ff iI t ýJ,!ed61pe~kof otentiallyy*.-contaminated! ir, pastý,the *CRE:bounda.x>andry ntod;the2 CRE can result 'i nn.CRE of týhe iice-ensrinq basis ýanalyses.0of DBAconsequencesJ(all owed to beup to' 5 rem TEDE) -'or.:inadequate protect ion, ,of eCRE
.ccupants from' hazardous chemicals or,:smok1e,' _the CRE b~nary~j i~s inoperabl e. Action6~uijtlbaken orstorevan OPERABLE:,'RE-bounrdarywi thirni_9 days.,
(continued) SAN ONOFRE--UNIT 2 B 3.7-62 :-Amendment No.127' IA-1-7/l
'Re issucd AQ/ O6F%/
CREACUS
'. .B 3.7.11 BASES (continued) rACTTOW <T d'B .
77FUM th'nr
- ......... *!*inoperab le::acti nthtmidrv~
StII on imust~Ie ni*to iss;crnni
'.1mp ee dprPd t'ý gati ng teibnf
....... o lesseni the- effectoi oil *qcal ...c- ....... "eventor.:a R' Or,*;cnemlcal " the :
ha`1tem 1e sm'oke.,Actions must be .taken :withn :24 hourrs htLin ith I -eevent 'of. a DBA ,- -.t he .mltl
- qatinnq 'Ia'ct i on's4 141 tht ~qi cal exposures -wi.,1.
eox*tced!thehcalculated',.dose hc ensinq - -the T--yoDBA consequences, Id -th *h t-c- Ifrom*hazardous. chemical s"'iand-smoke: o These
- itqat q actions'0 (ire.';&ctions'_that are takent offset
ýh'e.ohsequernces :of -the inoper~abl e CRE 'boundary).shoi'l d b4 iepl anned fo r implementati oniupon entry ntothec i ondtio
- ard essofwhether hentr..is-lntentional or unintentional. I ffhe.24 - ourCompIet'3on ;'Ti.me- i s'-reasonable. base'd on .t he-- Iow .
roaii rn this time 'peri6d' n' he.uuse *oft miti qatia nq .a ons._7#lhe 90_ day C-ompl eti on Time
- asireaona e{baseadý
& ontlnh&de'eermination thatth'e'.:im tl gattng dtlons, ..will enensureJ te' protecteon q of imiti ts-within
.prb ii t~yji*ha(t-CRE -
,OC d ,limts w 'hae:'toI i1 mm a v comeasures.that m
may ers el a f f etch lir:a i1 thb ocn**e.ttrol reactor tnd maintain litn a safe2,shutdown 'conrdition in the ev'ent~of a4;,DA.ý
'h'ddtion, .the.,9OýdaKC'ompletio'nTime.-s, a easonabl e diaqnos e plan ,_ and test ý-6ot' ýprobl~ with theCRE'botndar'y.-,
,C.1:andC.2
.'-- L- . odes 1or4,1if.- the inoperable CREACUS or e
"--ntoeI re CRE boundf=ary cannI hFerxestored to OPERABLE
- status-within th'e a-s-eei-a-e***".ired Completion Time +-n AE , ,3, or1, -the unit must be placed in a MODE that
--AMODe minin'zes the-accident risk.-To achieve this status, the
- unit must be placed in at least-MODE.3 within 6 hours, and
.in-MODE 5 within 36on hours.
reasonable,-based The-allowed operating experience,jto Completion reach Times the' are required u'nit conditions- from full -power conditions -in an - S...orderly manner-and-without challenging unit systems.- (continued).: SAN ONOFRE--UNIT 2 B 3.7-63 -Amendment No.127 ,/A-7-IAI Re iu A -- A:.;0
CREACUS B 3.7.11 BASES (continued), ACTIONS 0.1iD.2. _.-and D.2.2 (continued) InMODE 5 6,or during movement of irradiated fuel
- assemblies, if Required'Action A.1 cannot be completed
!within the required Completion Time, the OPERABLE CREACUS,
- train must! be immediately placed in the emergency mode of
- operation. -This actionlensures that the remaining train is
,OPERABLE, that no failures :preventing automatic actuation will occur, and that any.active detected. -: failure
- will be ..readily,
.An alternative to Required Action D.1 is to immediately.
suspend activities that could-result:in a release of'.. radioartjiv'ity that might require--isolation of the :ee9,trel . 1+oemCRE.-I This places.the unit in a condition that minimizes-the accidentrisk. -This does not preclude the movement of fuel assemblies to -a safe" position.. E.1 and E.'2 When in MODE& 5 or 6, or dduring movementn fi*r adraf.d fie'1 jRsmhl iý_ wth-twntdralns*jnnnerah pnr -with-Annp nr.,*mnrpnor
.CREACUStIa nshsnoperabl e *due-Int4inoperabl e'CRE 'boundariy, acinmust-be tiken .immei t 0. -t suspFen aciv'i tie1s.that could result- in a.,i-please of. radioactivity that might-enter the ent*,d, .,m, CRE. This,-places -the unit in a condition that minimizes-the accident risk._ This does not preclude the movement of 'fuel to a safe-position.
F.1 If both'CREACUS trains are-inoperable in MODE 1. 2 or 4
-for ;reasons other than an-in6perable control roomCRE boundary (i.e., Condition B),- the CREACUS may not be capable of performing the intended function and the unit is in a conditio-n outside the accident7analyses. Therefore, LCO 3.0.3-must be entered immediately.-
(continued) SAN ONOFRE--UNIT 2 B 3.7-,64 Amendment No.128 G9/-16*-3
CREACUS B 3.7.11
- BASES (continued) I -
SURVEILLANCE SR i.3.7.11 .1I REQUIREMENTS
- Stanidby'systems should be checked periodically to ensure
- that ýthey ýfunction properly'.- :,Sihce the environment'and
,,ýnormal! operating conditions-on this system are not-severe, testing eachtrain once-every month provides an adequate,
-check-on this system.
- Cumulative 6peration of the system-for at least 2 hours over a-31-day period is sufficient'to :reduce the buildup-of moisture on-the adsorbers and-'HEPA filters. The 2 hour time
'frame islased on a conservative engineering evaluation which calc'ulated the time-required to evaporate the'moisture
- containedl*n the air trapped inside the CREACUS~duct upstream of charcoal 'beds.'JThe:31 day Frequency is based on
.the.known reliability ofthe equipment, and the two train redundancy available.
SR 3.7.11.2 This SR verifies that th required .CREACUS testing i-S.- s :
,performed in accordance with.th e-Ventilation Filter Testing Program (VFTP).' The CREACUS filteri tests are based on
.Regulatory Guide 1.`52 (Ref. 53).-TheVFTP:includes testing HEPA'filte'r performance, charcoal'adsorber efficiency,,1-
- minimum system flow rate, ,and the physical properties of the
- -activated charcoal (general use and following specific.-
.operations).-Specific test hrequencies and additional information are discussed in detail-in the-VFTP.,,.
The-filtration efficiency'only apply to the emergency
-recirculation air conditioning.-units E418 and E419.-
- Therefore,) testing for'filtration' efficiency is not required
*-,ifor the emergency ventilation ýsupply units A206 and A207.
However,- the specified air. flow from the emergency
.ventilati6n units is required'during the filtration efficiency testing of the emergency-recirculation air conditioning units. -Also,- the-air flow requirements which
'are specif i ed'in :the-VFTP apply to the emergency ventilation
-and-emergency air conditioning:units.
(continued) SAN ONOFRE--UNIT 2 ,B 3.7-65 -Amendment No.4ý-2,128 2/G5/J0 I
BCREACUS 3.72.11 BASES (continued) I SURVEI LLAN CE SR -3.7.11.3 REQUIREMEN TS (continu ed) This:SR verifies Ltat each CREACUS train starts and operates on an actual or simulated actuation signal. The Frequency "of24 months- i ansistcnt with that ified iý Referene is W'peainaexperi ence*ao*,4 s ......
... U.*'cnsi sten-L with,'- h .*yp cal-*;e ueliin~ y l :* : : .
SR' 3.1.111.4 Thi YeHrfi es the intgiy f the central reo nenlosure nd Ithe I e..s led .InIIak- rae of... p* tntiallyII teamt.i- nat air. The contral room positive r , with 'rspet to, emergency! -1adti*On stAt I thi e _-dc*of imereCy uI t
*eP;-
~III!.I I,., *: tf -atmsprr
-thp; I
- 61in re opeetufl Jl*
- _up I%. }[- W* 11 J U I- L.I~
- I I ;
*.* . IIIU*I LJ J. I I I~b "
no . 0.12t inChes ter eaue psio tie essure pr. , p esited p*esatisnq:;ofun,thTho
+MleaaRd e Cr.edC CREACUSIsf~isdesignl Ite desino ddta tepre~pssuriz maintain this tecRE*iountaryol
.meri nh.*=eyC:,2n&aoiatigb P-sitiv nr*asi with son.tratab- o tjta*1*t,_~
statEnelofe uWnýj.. - rm -" BsI TY nane_ o _u O I IFhis] R*v*rtiftes nea__ka IS'___r__f__ tR of t oCRpEundarAB Yu. the 'The'dse'ethaab1 'slfth ear,,* y:tmstisqare tinf s-; to cr:t --h-
-nd
*~ h s*~-into
~ 6 th emCREns
-le*:tatmas: 6-*n~i1tr neaaqev-,
'jthe"6n ýR0Envel'oppHabitability.,Prograhijj room ThGRE s7ý ýiJde Ti'ab~t bTe when,.thadiolq calTose to . :R,uEsboccupoantscallownq ant~ccdeinthe'.-1icoensiatorymeasursan-a ' --
lo.,B',cnsqene, , o__e-ta -5rem'JFEDEt-and"theCRE-
-fe-,sn rroide nmiilateredaciorJns ,cankesue'-tha't, ,: -CRE .
*the remaun ns.,*ry-5', -- are- roteed fro hardouscheiiicals n
,S'R,--ve-,r i -ies, tht f0's ke unfiltered :airneke r t CREýJ s'no"'qreater than -,the-flbw rate~assumed i n 'the icniq a-i n s,'oM consequences".Wer
~Thiltred~ai ileaaqeis~irter-.han'ýthe'-assumied`:fbwz
ýate.,Cohdition"B riiist:berenered-.LRequ~ired"Actiof-B.3 al1ows'Aime of. to restore the ýCRL bouindary:to_B-A OPERABLE cstatus, -
Pjr6Videdmiriti qa~tinq, acti ois' can1&nsifre'that the 'GRE ,efnai ns' wi thi n--the'; icensi nq,'basis-hbtily limiits'for the occupants >follo wi nqan ~acci den't,. -Cmest'ýmaue
'eds~u~e'in Requlatoyry,:Guide~116 ~Sctin~~-
t(~~) 4hich endorses>"withexceptions jJI 9-3Sefton (continued) SAN ONOFRE-.4NIT 2 Bý3.77i66 SEBAmendment No.2 ,128 -,0,/,
CREACUS B 3.7.11 BASES (continued) 6 n7).hese comrensatory.gmeasures
** . , .,, o, ay-also.,`e used .as~ml iq*a"tin *,"ac o s as..r
~snii&iqctions as requuirreed' , v , _
. -: ... ; :. . eduir~e*.di*ct on iB.,2,,.,T,;empor r'ytan ly cal _:m'ezno~ds o alI;ay
ýuse !as cme~sator~y~measureti re~stor'~PRBtT Rej,`)8 0,t; ionsjorrestor-S- nq the CRE 'bo'undary,ýto
.... PERABLEýs§tatu'sý ncl ude -chan.inq ýte, te** 1cen s inq '-ba s isDBA
.onseIquence ranalysis,-ý reparnqheC iboundar-yjora
.ombifatil6nof *these> action sDes. diencnq~ uonpthe'*-naturof h*-.e:zproblerand . the.corrective:&action,-, afullafscope tt....
~
".-~ ~ ýniea
~ neaae-'s*ma:nt;n ecessarvy to' .es ablisnhitnat'n "
~ -. ,~~bknot- eb&n~eesa,
~ tesImay CREi-bounrda tyýIias'ýbeen _rýoet-PRAL,,tts REFERENCES 1. UFSAR, Section 9.4.
"2. :UFSAR, Chapter 15.
3:UFSAR, Section66.4 14 UFSAR Sci~5
-.. TRegulatory Guide 1.52 (Rev. 2).
Z~e~i~'Gui e' 1 96 rJanuar-y, .30 ,,:-2O4.,~ *Dr ft hte*Paper*,
* .. .. .. 8.- *.(NEIY)..date~d
-- eof-G Ltte9-8ProcssandAlternative So .. ceTer.
ein s -the,'Context of, Controli;Room-, Habtail~t~ SADAMS 'Accession' No'.,ML040300694) SAN ONOFRE--UNIT 2 B 3.7-67":: SR3Amendment No. 44-l-,117 2/ /,
Attahment H; (ProposedBases Pages (For Infoirmatio'n Only)"SONGS Unit:3)
-CREACUS
- B 3.7.11 B 3.7 PLANT SYSTEMS B 3.7.11 Control Room Emergency Air Cleanup System (CREACUS)
BASES , . .- - I ."
- BACKGROUND.-- The CREACU -nrnviids a protected environment from which' eraters occupants can control the. plant f 1nn1np. I Iijnc'ntrrnliled release of -rdb-tvt~,-ýei LL .~
..:The CREACUS consists of twoiridehendpnt'.redundant trains 77 , , 06ounf i I ered. al r'. Each CREACUSjtra in consists of emergency a --niteme -onlnyunit, emergency ventilation air supply ui
-unit, emergency.isolation dampers',_'and cooling coils and two
-cabinet-coolers per Unit. Each emergency.air conditioning unit includes a prefilter, a high -efficiency particulate air_ý
"."(HEPA) filter, -an activated ýcarbon adsorber sectinnfnr._-
removal of[gaseous activity. (principally -edi oldies),' - and a fan.1 A second bank of HEPA-flltersfollows the adsorber section to collect-carbon fines. Each"emergency ventilatio'nair supply 'unit includes prefilter, HEPAfilter,
-r.hnnA.RdSrhPLr-and fan. Ductwork, motor-operated dampers,
" and instrumentation also form part Of the
.sAt`. Ai d. motor-operated dampers are provided air rfor volume 'control and .systemisolation purposes.
P6C-RE7 lsthe areawl th ;'wthe, the CRE-uboundar*ry that, contal ns!Athe ",spaces that* on roomoccupantsrinhabi t
~~aci entcompai~ssi
*hi*s *a rea :-encompasses the' cont rol 'r'oom. and nmayen compass other -non-critical--areas which -frequent{personneiT',access Wto r* t *n ecessar~y in *the evmenof an
. ccide6nt: The CRE, is protecte durinq normal 'operation.
hiatura1 ev'ents,, and accident'Tcon~lditions. The 'CRE boun ai'y
~Tth ombination of wll, flo, rof dciq,jdoors, penetrati ons and 'equipment*that'phhysically fform the GCRE_;-
The..ýOPERABILITW 'of-'the 'CRE~b'o*unda~ry':must ýbe ýmaintained-to; ensure- that the inlea'uni*'t kaqe;of 'erd a-ir _into the.CRE
-,not exceed -t he,,ileakaqe-assumed -in':the licensin -bas is analVses bf:desiqn :basissaccident- (DBA). .consequ.toCRE
-ctupants.,Th- -CRE :andits boundary are defined*,n'the pontr oom.Envelope Habitability.gPogra m.
' .... . - - - .... (continued)
SAN ONOFRE--UNIT 3 B 3.7-56 Amendment No. 116 06j28/99 I
CREACUS B 3.7.11 A BASES (continued) BACKGROUND Upon receipt-of thý.eactuating signal, normal air supply to (continued the*e*en*,t , ,el,,,RE is 'isolated, and 'the stream of. Sventilation air is*¥ecirculated through the system's filter prefilters remove anylarge particles in the
-trains.-The air to prevent- excessive Iloading -of -the HEPA -filters and
-charcoal -adsorbers.- Continuous operation of each train for
.at-least 15 minutes per month verifies proper system operability. - "
There are two-CREACUS operational':modes.. Emergency mode is an operational mode when the control room is isolated to protect operational personnel -from radioactive exposure through'the duration of, any one of the postulated limiting faults:,disdussed -inChapter-'15 UFSAR (Ref. 2). .Isn ition
- -modejis anjoperational mode-when--the ,or,-ro,-ror m-RE is-isolated to protect operational~personnel from toxi-7gasses
-an-d-smoke.I Actuation of the CREACUS places the system into either of,
-two separate states of'operation, depending on the initiation} signal. Actuation of- the. system-to either"the,
'emergency modelor isolation mode of.CREACUS operation
--:'closes thelunfiltered-outside-air_-intake and unfiltered,ý_
exhaust, dampers,- ne 4nn1 th..vstem 'for reci rcul ati on of
.control rcm ~ air wa~i*'th~in hCRE through the redundant
_trains' of -HP-n'6irc6l-'iler. The emergencyrmnde s initiates pressurization of the lcontrol .rccm CRE.- Ouft§side:.air'-is-a*.P..d to the air being recirculated Yfrom the ccr, t, r-,AM F oPressurization of the, m Uoto Icm~r R~ m7P( Infi trr1,ion of MMI unfilteredi ai r through ;the _CRE-ibouna rv.f nm ,l.-th - cz1vrrnIjrirJing ýareas ý& h, daett~hnR boundary'. e,,CRE Theree,-teroom supply-and :the outside air supply. of
- . the normall contro1- room HVAC'are monitored-by radiation-and
- toxic-gas "detectors respectively.' One detector output above the setpoint will cause actuation of the emergency mode -or-isolationmode as required.7 The-actions of the' isolation are mbre restrictive, and .wi ll overri de the actions of
--- mode
.'..,the 6emergehcy mode.of. operation. -However, toxic gas 'and
-radiation events are not considered to occur concurrently.
(continued) SAN ONOFRE--UNIT 3 B 3.7-57 Amendment No. 116 06/8/-99
CREACUS B 3.7.11 BASES (continued) BACKGROUND A singie tr In,ii pressurizc-tne Control raOOm to at least (continued) 01 inces-:-^ ,-.1teA -r dauesada.rhge
-aroid"... rate inecesof2'D e or Th- 'CEAU oeration 'in maibin~g he ontol roam ha.it .. discussed i e.i Redunda'nt' reci rcul ati on ýtrai nsý-~vde the reuired filtration excessive p-ressure drop develop" across ashould'an
.:-:the other -lilter train. -,Normal y-open isolation dampers are
-arranged ivnseries pairs so'that, one damper's 'failure to shuttwill--not result in a breach of -isolation. The-CREACUS
-is designed in accordance:.with-Seismic.Category I
- requirements.
r TheCREACUS:isjdesiqned to maintain the ont. , rom _etwr.n. abietall h et**eoifRE :.for fe- .30 days
-of-.'*continuous occupancy after a-Design Basis-Accident (DBA)-
-without exceedinq a 5-rem who1 od d ose l;,.effectlve
.S al D ---. ý c.-
APPLICABLE .The CREACUS components are arranged in redundant4 safety.ý SAFETY ANALYSES -related .ventilation trains. -The location of components and ducting, within the contr*l*r*om enveo pe gRE ensures -an. adequate -supply of filtered air A o all areas requiring access. ' The CREACUS provides airborne radioloqical protection for _the.**,,e , *, raM
,,*, ,CR0c6p ants, as demonstrated by the control room accI.,,1d,..ntRE.CEoccupant dose-analyses for"the most'limiting design -basisoss of coolant accident e fission product releasepreseited -inthe UFSAR, Chapter 15 (Ref. .2).
Dosec __ lations: as-specified-in Unit 2/3 UFSAR "L pTi5 rence , Ap 1 , only take credit
,^dix
- forýthWeHEPAF filters and :charcoal-Iadsorbers-of the emergency
- 'recirculation-air conditioninqgunit. -The emergency -
.=ventilation supply unit is sFdeslgned'to cr.,edn, , y it,
_contribut- to the pressurization'of-the control room to i- ze'.n,'Aineh ý* erinleauage-asTitdivaed wat psinl Unit2)to
ý,puen ufiltered inl~eakage asincae in th1ni /
_-UFSAR.- (continued) SAN ONOFRE-_UNIT.3 B 3.7-58 S F3- -Amendment No.1160 G4/25*5
"CREACUS B 3.7.11 BASES (continued)
P . * . q .... i i at i
- i I APPLICABLE ýh L -
Q m R;4 1 40r. - 2 !L. . i IX[ LUAIL RRQ
~JU3
?pPl an I ~I~U3~3 ef ULIII~J11J11 ULL.~
~.IlLhI.. LIIL SAFETYANALYSES ;F J i . ~iij ~
+/-...7r.I U IIJ. AL L L I .l. AI'. J 1l1 ILU I.+ ;.I IlU f xt U
Aun
) l l*lJ l {IJIYll lI* U I, JA I.., LII III I. uU . l,-ILI IUI,.I
- .- ) -I ,A J pI £*. aI--
- I l- I. III "
-. eCREACUShi rm;smoke-and' ardois inazardouschemical Teleasesh demonstrates thatLtne toxicity
~im~'t1~re, not -exceede'd :1 r-{h&',*RE ýfol 1owl nq,.a -ha~zardois
~heffi'cal"-rel 'ease (Ref'- :)T h e eVal uat on'-of -ýa':sm~okeý
----. ha- jenqe6:, ~emons'trat~es':,th'at, - w .I nl n t-re uIt,:Jn- the
. habl fnyie'nv tT.*tnee 'ccunants.,tohg control thereac-tor, jelter mote
*mo*,ncn h tr oo1mnnfro m'the-remotesnhu'tdown. panel-s (Ref 4)'!
The worst .case single active. failure of a component of the CREACUS,-assuming a loss of-offsite-power, does not impair Sthe ability ofthe system to perform its design function.., The.CREACUS satisfies Criteri on 3 of the NRC Policy Statement. 7 LCO Two independent and redundant trains of the CREACUS are required to be OPERABLE tojensure -that at least one is-.
-avai 1a bI e, assumin rg that &-
6 single -tctive failure ýdisables
--t heot her* rai'n-.. pt al'SrStem-failure, suchas ;.from a *ilo'ss
-ofboth y-,ventiati ontralns *or:'fr'om -.an '-* nop'erable CRE boundary,, could result'in ac*,entrl op*,,, ,,rate,,,
xcee'din .a dose +/-r-exees-~of, 5 rem iTEDE in the event-of a large radioactive release. {he CREACUS L3 ihis considered OPERABLE when t hP. id~i~v.*,*l*omponents necessary to Control cperator jmit CRE. occupt exposure are OPERABLE in 1*,, tain,. Ar CREACUS-tFa-in is considered-OPERABLE when the associated: - Ja. ý:,Fan i s OPERABLE;
- b. HEPA fI ters. and charcoal adsorber are not excessively restr icting flow, and are capable-of performing their
. f*iltration functions;, and I (continued) -
SAN ONOFRE--UNIT 3 B 3.7-59 Amendment No.,116 . 3/1-9/981
.. CREACUS B 3.7.11 BASES (continued)--",,
LCO c. .'-Ductwork, valves, and ,dampers are OPERABLE, and air (continued) :circulation can be maintained,-._If an Emergency Isolation Damper:is stuckiopen,!the associated.train
- - :ofCREACUS may still be considered OPERABLE if the redundant damper in series with the inoperable damper is closed with 'power removed.---.
rordefr to e be maiýt'oinedered b9PERABýLE:
*£RE- oucndhmt stthE.omach*er atCtRE.occupanti osa:lcul mated'ja q,-raioctvs.e einshdosnf.xedte I4fdtin d -k ctcan s-m- oKe -.bnr m
'con eusbe m~ncie d
-.ncluding t.l IIIc.*it ftheall s., floorsl, ceilings, ductwrkandd eeess dors
.The LCO isimodified by a Note:allowing the cntrl rom,RE-
.boundary.4t0-be bopened intermittentlyunder administrative control s,-lhTi s' Note' onlapplestooeninqssnjthe-CRE
ýeravii dy .restoredto *nheode'siqn
.T .: _-. boundary vthat,
. , ;cond~tQon ýusc can h :Asdooirs,-hatches.,,. lor:*lugs, :nd:.access-
`6ofiditionlic fas j 6o r,
. ainels. -For entry and exit through:doors the administrative control of1 theopening isperformed by the person(s)
" entering oret.itJq the area.-For, other openings, these
,controis beord uraiized consist c of stationing
-a dedicated individual at-the openinq who is in:-continuous
-communication with the eet- ,,, an.the..RE.
- 'This individual-will have a method to rapidly close the
-openipn* odtorestore.the CRE bounaryf toYa-cbndit on
-- eouival~nt!to the.designvconidition when. a need for entrl-OMi9CRE isol n is in-dicated.
(conti nued) SAN ONOFRE__UNIT 3 B 3,7-60 -+Amendment SANONORE-UNI 3 3.-60 *No. 116-o3/49J98
\
CREACUS B 3.7.11 BASES (continued) - . APPLICABILITY M! flJ1.*A,3. Un ft4.-r
- idduring ,mioveme*nt*f
.bradiated Jfu "I`a'sseWbliPS thCP FACINS iniit.hfe)PFRARI.Jto habit eduring and followinga A---
In MODES-5 and 6,:the CREACUS is-required to cope with the'
-release from a rupture of a'waste"gas tank.
--,During movement of irradiated-.fuel'assemblies,-the CREACUS must be. OPERABLE -tg r6n itht
*hk e*r.keas f.fnm tgl handl ing -,cidnai ý,6 ie" d dfuel.
..ACTIONS :ACTION-statements'are'modified;-,by .Itwo NOTES. NOTE 1 says: A"The-provisions of LCO 3.0.4iareTnot applicable when I entering'MODES 5, 6, or defueled' configuration."'
-Specification 3.0.4 establishes that entry into -an operational mode or other specified condition shall not be_ý,
made'-unless 7the -conditions- of .the 'LCO are-met. Applicabil1ity-statement ."Duri ng':movement of -irradiated :fuel assemblies." ensures the OPERABILITY of both CREACUS trains
- prior to the start of movement -of irradiated fuel
,assembliesi.
NOTE-2 says: "Each Unit shallaenter applicable ACTIONS'~
'separately." CREACUS isa shared-system between Unit'2ý"and Unit 3. -.LCO doesn't :address Tthe-operational situation" when the Units'are in different-operational MODES. Without this NOTE it mayi not be clear whatACTIONS be taken.
(continued) SAN ONOFRE--UNIT-3 wB 3.7-.61':. Amendment No.--- 1-6,117 .021/,95/ I
CREACUS
.B 3.7.11-BASES (continued).I ACTIONS A.I (continued Withn n eCRFAC1$traiSninrperable *.,ea~sons*6therthah.,,an S
. .inop~erzable.CE~bbundary*, action must be taken to restore
.:OPERABLEE Wtusih i 14 days. The 14 day AOT is based on a probabilistic risk assessment' that does not require
-administrative controls -to be implemented when a CREACUS train is-taken out of .service. I n thi.,.,Cnnd ition, the-remainihng OPERABLE CREACUS Aiths' in'js-a.dequate to:
performno ,trol ,,, ar *h-edCREioocpant. R,* protection function.
-However, [reliability is:reduced because a.
theoverall
's-i-ngle failure in the OPERABLE:C REACUS train: could result in Iloss of CREACUS -function. The.14 day Completion Time. is.
based on the lowiprobability of ýa DBA occurring during -this time period, "andthe ability ofttheh remaining train to'
-provide the required 'capability B.1FBTndB.3 TCj.L. J.3~.. ~ b,. ~ ... k. IfrfC I ,I * ;lUllLW a.i U I I J~l.1 LJUUIIII .I Jf 13 I ll1jJLI UlJ I0. III I'IUL )I.
-. .l ,.lll 3
or4, the CREACUDtrainsý cannot, .rfr1 theirýJnntended.< f-unetions.~ Aetions'mu't -be taken- to restore an- OP[RABL[' oom ounarywitin 4.-haurs;;. Dui-ing tha perieo contol Li.Ul~l iL n P 4IUI 'PRU;UIII IUU II . II 3JUUI1U Up II.U. I I. I.L coP nsAto'1 ryAmcsreP.. itet th ýthe intent of GDC19
*s 1 43 Fuld b, 1sdtoi protect,*6b4ntrcl room- s4rem,fp~
hemicals,1 smoakc, e',eatrand-relative huimidity, ý.and
*R 40Q :1OM A rir QIMP ; F .
AR 1AFIPN~ F :irr-Fmp 2i" 22ia S S - V.. t - - - , LL, 1" . ý . _ . . . I I t-aooress tncse concerns-6 brintenti-omal and turnntenvi6Hnai entry-, ntthcndtionf. Th2 hodr ComlcioTime is reanablebased AR 4h- 1low p, 1 4a.. Vf a DBA oc.Urrl I InI durin thist t.Iimcpi at usecof cmn~pensatery; measucs.'The 24 hour Compet'ionTic saypcal RQasný63e timhe to dia gnose-;-nad osby earan
-re tetas preblems with the o 1ro roo bon W eu nduAar A hh 6r-iF ilek-e~ofptnial.cna~ ated -- i
ýps th bdrY-a' ,J nt~o -Jhe- CRE 6a n result,'in CRE L
*k6pupantjiradi I* II1Gi~ ~olll* oqic'al5dose' III l.* .ll*&ea'ter'-than II * .*
- I ~the-'calculae
**ll]~ l.{,G lj e
ýf 'Jhlicensinqbasisý anal'e BA ef s-(alloedd oca,,o, -cupant*s -remd-.EDE), ,ot*n* u' t-,*e p-',ro*te*etion Q*o,.-CRE
,boundaryL'IS :noperable. jACtio~nSýMUsti be tae orsoea b(ýpERABLECRE""bound ry wi thi nO~
(continued) SAN ONOFRE--UNIT 3 B 3. 7; 62 _Amendment No. 116 .-,/1,/01
8B3.7.11 BASES (continued)
- n. peid th-th,.Ebo "nda ry ,. os erd~
dcction' must'.bez'ný inoperablile' Iess6'-tene; .itatejdto'mmlement:.mlt et.*W-f n ac ions,,, o ne thee t CREoccupats om the
-otential hd6r ds-ofa-* a i cal or :'ch em -a .'vent o a**c
' ::o tnto~ n' theevent',or do:er.
~-Aczti ons miust: be f.aken':withi n2 hu
-ýeif'ta'I - 6:event-o - A te-miitiinq cti ins ll* *ens h at CRE-.occu pant iadd 1oqica exposuresJ ' -ll
-otexc6edthe cal cul ated - 2do 67f-'t h e 4cen"si nq as'is
'DA~onsquecesand the.,CREýoccupants anays!s~o __
rotected Jfrom f .hazardou~s ,chemicalsand s :nsmoke. hese
. ti.atingqactions i.(1.e.Aactions that aetaken t o 'offsett the. consequn&6es:of th.JoealrRbudr)ýh'lýbe
' preplannedfior'.-lmplementation:uponw-entry ihntothee:condtoon,-
-eqardl ess *.OT,wnether en-r~y:is int ention al:o*r uni ntent'i na1I
!he -24 ".houir -Completion Ti me-J sreasonable~based on the'-Low proba]bility.*of a' DBA,ýoccurriiq niur'inq !thls and otime~per1od, t uIiTiiS efit i .*t qd*,aai hsmThe 90pday'.Compl etioiirme fslreasonaubejbaBSed on the etermination t hatý the -mitiqtinq -
actionswil-ensure-.protec tonofýfCRE occupants within -
.nalyze'd i its whi I e:l limitinq'the* probabi lity.that,ýCRE 0ccupantswi 'havet0ntprotectivema esita-f -
*a.*dvrs el y fectth*i iaf tr i'if iy'* -ý c te te "reactor
-- nJ a safe shutdown condition' in th6'eyevntý of
-DBA. Iaddition,;.,the 90 dasy-,Completion' T mej s-aa
-reasonabletime:to dia s pan and 6possibly&Irepalrad-
- jR muf 'CREbbe a af y : - . .
-C.1ýand C .12 - _
-LInoM~el-2*I 7'r i the Inoperable CREACUS it I.n t aV ZI fCRE boundary rPestored -to OPERABLE
-status within thie etdq r Completion Time I-t¶ : -
'--ODL'1,- 2,,3, cr"4, the unit must-be placed in a MODE.that minimizes: the accident risk.-To achieve this status, 'the.
_J :unitmust- be placed in at least MODE 3 within 6 hours, and
- _in MODE 5 'within-36 hours. 'The6 allowed Completion Times-are reasonable,,based on operating}experience, to-reach the required-unit conditions'fromfull power conditions in an orderly manner and.without challenging unit systems.-,
(continued)- SAN ONOFRE--UNIT3 . B 3.7-63, Amendment No. 116 1-0-,7-/
CREACUS B 3.7.11 BASES (continued) ACTIONS D.I, D.2.1. and D.2.2 (continued) In MODE 5 or 6, or during movement of irradiated fuel assemblies, if Required Action A.1 cannot be completed within the required Completion Time, the OPERABLE CREACUS train must be immediately placed-in the emergency mode of operation. This action ensures that the remaining train is OPERABLE,1that no failures preventing automatic actuation will occur, and that any active failure will be readily detected. - An alternative to Required Action-D.1 is to immediately suspend activities that could-result in a release of radioartivity that might require isolation of the eontrol
*eom ýCRE. This places the unit-in a condition that minimizeslthe accident risk. This does not preclude the movement of fuel assemblies toga safe position.
E.1 and E.2 When in MODE& 5 or 6, or during movement of irradiated fuel assemblies with two trains inoperable pr'withoneVor-more RBEACUSat n i*nqpe rýble*u * -inoperabe'REbondr, action must be taken immediately to suspend activities that could result in a release of radioactivity that might enter the eeltral re- m RE. This places the unit in a condition that minimizes the accident risk.- This does not preclude the movement of fuel to a safe position. F.1 If both CREACUS trains are inoperable in MODE I,-2 or 4 for reasons other than an inoperable e.n-t .ri's CRE boundary (i.e., Condition B), the CREACUS may not be-capable of performing the intended function and the unit is in a condition outside the accident analyses. Therefore, LCO 3.0.3 must be entered immediately. (continued) SAN ONOFRE--UNIT 3 B 3.7-64 Amendment No. 117 09/16/03
CREACUS B 3.7.11 BASES (continued) SURVEILLANCE SR 3.7.,11.1 REQUIREMENTS Standby systems should be checked periodically to ensure that they~function properly. Since the environment and normal operating conditions on-this system are not severe, testing each train once every month provides an adequate check on this system. Cumulative operation of the system for at least 2 hours over a 31 day period is sufficient to reduce the buildup of moisture on the adsorbers and HEPA filters. The 2 hour time frame is based on a conservative engineering evaluation which calculated the time required to evaporate the moisture contained'in the air trapped inside the CREACUS duct upstream of charcoal beds. Thet31 day Frequency is based on the knownfreliability of the equipment, and the two train redundancy available. SR 3.7.11.2 This SR verifies that the required CREACUS testing is performed in accordance with the Ventilation Filter Testing Program (VFTP). The CREACUS filter tests are based on Regulatory Guide 1.52 (Ref. 93 ). The VFTP includes testing HEPA filter performance, charcoal adsorber efficiency, minimum system flow rate, and the physical properties of the activated charcoal (general pse and following specific operations). Specific test frequencies and additional information are'discussed in detail in the VFTP. The filtration efficiency only apply to the emergency recirculation air conditioning units E418 and E419. Therefore, testing for filtration efficiency is not required for the emergency ventilation supply units A206 and A207. However, the specified air flow from the emergency ventilation units is required during the filtration efficiency testing of the emergency recirculation air conditioning units. Also, the air flow requirements which are specified in the VFTP applyito the emergency ventilation and emergency air conditioning units. (continued) SAN ONOFRE--UNIT 3 B 3.7-65 Amendment No.-1-6,117 02/05/0+/-
CREACUS B 3.7.11 BASES (continued) SURVEILLANCE SR 3.7.11.3 REQUIREMENTS I r (continued) This SR verifies Lthat each CREACUS train starts and operates on an actual or-simulated actuation signal. The Frequency of 24 months is consistent with that&specified i-n Reference 3-. s+b~eon,+ Tinndus-tryperati I,expbe rt en666 a nd +i s' con'slistent wi th the'y tpica l efuif eljng, cycle . SR 3.7.11.4 This SR verifies thehite!O ABntrl ritPTeelosure of the room end the ansumed inolakeage ratesaaf pot-ntiahyeCoantaminated Theontrol eair. Room eloe I bi lt y-Ppressure, with respa. t to Lu ver,I pi JpeJ Fuei on.~ 1 LL the AG113 D ur ing emre c raitioin state of Ih,.-fteny made of Opration, tRhe-CREACUS is designed to prcessurizen-h s ontral oom t0.125 inches water gauge-positive pressure with r+speh t to the atmosphere in order to prevent unfiltered inleakage. nREACUS The is designed to maintain thi positive pressure with one trainut. e TY o d:miitfunailtbn d aiciionls can ae -ast a theCRE.rboundarny ah os,ýS ,t m r toresto e he CREA ound ryt oe,OPE+ RABou atY t 'O n-oeta b
- +* ,-+- 1'+-+. ++?+** +*+ .- +". ... ++" daE+'st p++
of-DAzosqe'6si 5 'rem` TEDEianid'-ihe-CRE xcpnsar rtced' rom-a-adus'chemi ýc~al sr-hnd -sm~6ke:-,`
'[hs'SR-.verjifiesAt i +tln ;it~he-.`h iteý on +,+ ensl: nob*bas~l fi& t abli op e habl d air~jnlea I i "tyrllm aq~into he s.ogr++h CRE-.
is.no ýqreaterý, than -th- I'6
)roVided mitiqatinq actio'rscan ,ensur~ejth't the CRE-'remairis arejd-Mi s Uss edKnRe-qij htor5' -Guide-1~9 ection:C27.3-(Ref6) ch endorses,-wi thexchl'oeptlos ,J 9NEIon99-03; -,Section""
(continued) SAN ONOFRE--UNIT 3 B 3.7-66 Amendment No.4---6,117 02/05/0G
CREACUS B 3.7.11 BASES (continued) ýUVEILLANCEi~ SR3 .7?.-1.ý4 REQUIREMENTS I . I . . . 11ý L (c;6fi,f I fi udd) .4, and ,AppendWix,-,, Re. e compens~atory ,,measures'
ýRef8 theCRE boundary to DPERAB LE,?status "i ncl ude -chan6q'hq the I.j cbens nq :basis DBA consequence .analysiss-}repairi,nq theCREboundaryrorza Ombin hat'iionThese ns nac IepenInupon enatureiof nhe',p6broolem and acIon 'a j'ful I "scope rrecte -tneco nneaKaqetest may-not *;be necessarýj-to6-,.stabli sh tthathe ini REt&boundary has restord_dbeen to -.O ERAB LEst at us:
REFERENCES 1. UFSAR, Section 9.4.
- 2. UFSAR, Chapter 15.
,3, ec on 6 qE k S -- 6c.t 4 '.UUFSAAR; n:159-Set 3,5. Regulatory Guide 1.52 (Rev-.2).
~W~ddel.-196 N-EInaeJnay,30, ,Q2004.'"NE;I'.2DffWh~itb` Paper,-ý UsebfGneric6 Lte+ f8- PrAl ye
'dAlteyn'ati 1jbtb "(ADAMS
-,-:' ýAccesson{NO~MOOO~
SAN ONOFRE--UNIT 3 B 3.7-67 Amendment No.-1-6,117 02/05/IS}}