ML19210A603

Tech Spec Change Request 7,Amend 1 Supporting Licensee Request to Change DPR-50,App a Re Air Treatment Sys. Certificate of Svc Encl

ML19210A603
Person / Time
Site:	Three Mile Island
Issue date:	10/28/1975
From:	Arnold R METROPOLITAN EDISON CO.
To:
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ML19210A600	List: ML19210A599 ML19210A603
References
NUDOCS 7910300640
Download: ML19210A603 (22)

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METROPOLITAN EDISON COMPANY JERSEY CENTRAL POWER & LIGHT COMPANY AND PENNSYLVANIA ELECTDJ.C WMYANY THREE MILE ISLAND NUCLEAR STATION UNIT 1 Operating License No. DPR-50 Docket No. 50-289 Technical Specification Change Request No. 7 Amendment No.1 This Technical Specification Change Request is submitted in support of Licensee's request to change Appendix A to Operating License No. DPR-50 for Three Mile Island Nuclear Station Unit 1.

METROPOLITAN EDISON COMPANY By f L _

Vice President-Generation -

Sworn and subscribed to me this 28 day of M A , 1975 Notary Public EfM m:a. a .2 d

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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION IN THE MATTER OF DOCKET NO. 50-289 LICENSE NO. DPR-50 METROPOLITAN EDISON COMPANY This is to certify that a copy of Technical Specification Change Request No. 7 Amendment No.1 to Appendix A of the Operating License for Three Mile Island Nuclear Station Unit 1, dated October 28, 1975, and filed with the U. S. Nuclear Regulatory Commission on October 28, 1975, has this 26th day of October been served on the chief executives of Londonderry Township, Dauphin County, Pennsylvania and Dauphin County, Pennsylvania by deposit in the United States mail, addressed as follows:

Mr. Weldon B. Archart, Chairman Mr. Charles P. Hoy, Chairman Board of Supervisors of Board of County Commissioners Londonderry Township of Dauphin County R. D. #1, Geyers Church Road Dauphin County Court House Middletown, Pennsylvania 17057 Harrisburg, Pennsylvania 17120 METROPOLITAN EDISON COMPANY By /s/ R. C. Arnold Vice President-Generation

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, METROPOLITAN EDISON COMPANY ::vaswiaar or ceneau runuc urrurusconew:,usou ,I POST OFFICE BOX 542 READING, PENNSYLVANI A 19603 TELEPHUNE 215 - 929-3601 October 28, 1975 GQL 1633 Mr. Charles P. Hoy, Chairman Board of County Comissioners of Dauphin County P.O. Box 1295 Harrisburg, Pennsylvania 17120

Dear Mr. Hoy:

Enclosed please find ore copy of Technical Specification Change Request No. 7, Amendment No. 1 co Appendix A of the Operating License for Three Mile Island Nuclear Station Unit 1.

This request was filed with the U.S. Nuclear Regulatory Comission on October 28, 1975.

Very truly yours,

/s/ R. C. Arnold R. C. Arnold Vice President RCA:CWS:pa File 20.1.1/7.7.4.3.3.1 1492 084

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/ METROPOLITAN EDISON COMPANY suosioiany or acneau ruauc uriuries coneonarior:

POST OFFICE BOX 542 READING. PENNSYLVANI A 19603 TELEPHONE 215 - 929-3601 October 28, 1975 GQL 1633 Mr. Weldon B. Arehart, Chairman Board of Supervisors of Lond:aderry Township R.D. #1 Geyers Church Road Middletown, Pa. 17057

Dear Mr. Archart:

Enclosed please find one copy of Technical Specification Change Request No. 7 Amendment No. I to Appendix A of the Operating License for Ihree Mili Island Nuclear Station Unit 1.

This request was filed with the U.S. Nuclear Regulatory Commission on October 28, 1975.

Very truly yours,

/s/ R. C. Arnold R. C. Arnold Vice Presideat RCA:CWS:pa File 20.1.1/ 7.7.4.3.3.1 1492 085

Three Mile Island Nuclear Station Unit 1 Operating' License No. DPR-50 Docket No. 50-289 Technical Specification Change Request No. 7 Amendment No. 1 Licensee requests that the following changes be made to Appendix A of the Technical Specifications, as indicated by the attached changed pages. This Change Request supersedes our previous Change Request No. 7.

Page 11. Add "3.15 AIR TREATMENT SYSTEMS", "3.15.1 EMERGENCY CONTROL ROOM AIR TREATMENT SYSTEM", "3.15.2 REACTOR BUILDING PURGE AIR TREATMENT SYSTEM", and "3.15.3 AUXILIARY AND FUEL HANDLING EXHAUST AIR TREAT-MENT SYSTEM" to the index.

Page 111. Delete "4.12 CONTROL ROOM FILTERING CYSTEM", "4.12.1 OPERATING TESTS", "4.12.2 FILTER TESTS" and '4.14 REACTOR BUILDING PURGE EX-HAUST SYSTEM"3 and add"4.12 AIR TREATMENT SYSTEMS", "4.12.1 EMERGENCY CONTROL ROOM AIR TREATMENT SYSTEM", "4.12.2 REACTOR BUILDING PURGE AIR TREATMENT SYSTEM", and "4.12.3 AUXILIARY AND FUEL HANDLING EyMAUST AIR TREATMENT SYSTEM".

Page 3-61 through 3-66. Add new Specification Section 3.15.

Page 4-55. Delete existing specificat'on 4.12 and add revised Specification Section 4.12 (pages 4-55 through 4-55e) .

Page 4-8 Change No. 8 on Table 4.1-2 as indicated on attached changed page.

Note that No.11 of Table 4.1-2 has been requested to be deleted by our Change Request No.19 (August 23, 1975).

Reasons for Proposed Change The chsnge is proposed to provide additional specifications to ensure high confid'ece that these systems will function reliably, when needed, at a high degree of efficiency.

It should be noted that this proposed change was requested by the Commissions',

Mr. George Lear, in his letter to the licensee dated December 6,1974.

This Amendment incorporates the changes agreed upon at the July 28, 1975, meeting between the NRC and Met-Ed representatives.

Test temperatures for the Control Room and Auxiliary andg Fuel Handling Building air treatment systems have been designated to be 125 F in that 1492. 086

a) testing at 130 C could result in meeting the laboratory decontamina-tion efficiency by removal of contaminants volatile at this high temperature thus providing an unrealistic carbon efficiency b) testing at 125 F provides for testing at a temperature which is realistic under accident conditions for these air treatment systems and therefore constitutes a worst case efficiency.

A test temperature of 250 F for the Reector Building Purgo Air Treatment System has been designated to provide a test temperature in degrees Fahrenheit.

Safety Analysis Justifying Change, The change reflects additional and more stringent requirements than those currently existing. The change does not involve a significant hazards consideration nor an unrevieved safety question and will not cause undue risk to the health and safety of the public.

1492 087

TABLE OF CONTDITS .

Section .

. Page 3.1.3 !ENIMUM CONDITIONS FOR CRITICALITY 3-6 3.1.4 REACTOR C00LAliT SYSTD4 ACTIVITY 3-8 3.1.5 CHDESTRY 3-10 3.1.6 LEAKAGE 3-12 3.1.7 MODERATOR TDfERA'IURE COEFFICIENT OF REACTIVITY 3-16 3.1.8 SINGLE LOOP RESTRICTIONS 3-17 3.1 9 LOW POWER PHYSICS TESTING RESTRICTIONS 3-18 3.1.10 CONTROL ROD OPERATION 3-18a 3.2 MAKEUP AND PURIFICATION AND CHE?GCAL ADDITION SYSTDG 3-19 3.3 D4ERGENCY CORE COOLING. REACTOR BUILDING D4ERGENCY

• COOLING. AND REACTOR BUILDING SPRAY SYSTDS 3-21 3.h TURBINE CYCLE 3-25 3.5 INSTRUNENTATION SYSTDG 3-27 3.5 1 OPERATIONAL SAFETY INSTRU!ENTATION 3-27 3.5.2 CONTROL ROD GROUP AND POWER DISTRIBUTION LI!ETS 3-33 3.5.3 ENGDIEERED SAFEGUARDS PROTECTION SYSTD4 ACTUATION SETPOINTS 3-37 3.5.4 INCORE INSTPUMENTATION 3-38 3.6 REACTOR BUILDING 3-bl 3.7 UNIT ELEC"'RICAL POWER SYSTU4 , 3 k2 3.8 FUEL LOADIIIG AND RINELING 3 kh 39 RADIOACTIVE MATERIAIS 3-46 3.10 MISCELLANEOUS RADIOAC'"IVE RTERIAIS SOURCES pp 3 h6 3.11 HANDLING OF IRRADIATED FUEL a $ 3-55 3.12 REACTOR BUILDING POLAR CRANE

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3-57 3.13 _Sh.c0tTDARY SYSTD4 ACTIVITY 3-58 3.1h FLOOD 3-59 3.14.1 PERIODIC INSPECTION OF THE DIKES AROUND TMI 3-59 3.lk.2 FLOOD CONDITION FOR PLACING THE UNIT IN HOT STANDBY 3-60 3.15 AIR TREATMENT SYSTDs 3 3.15.1 EMERGDICY CONTROL ROOM AIR TREATMENT SYSTD4 3-61 3.15.2 REACTOR BUILDING PURGE AIR TREATMENT SYSTD4 3-63 3.15.3 AUXILIARY AND WEL HANDLING EXHAUST AIR TREATMENT SYSTDi 3-65 h SURVEILLANCE STANDARDS h-1 h.1 OPERATIONAL SAFETY REVIEW h-1 h.2 REACTCR COOLANT SYSTU4 INSERVICE INSPECTION h-11 k.3 TETING FOLLOWING OPENING OF SYSTD4 h-28 h.k REACTOR BUILDING h-29 k.L.1 CONTAINMENT LEAKAGE TESTS h-29 4.h.2 STRUCTURAL INTEGRITY h-35 h.k.3 HYDROGEN FURGE SYSTEM h-37 k.5 D4ERGENCY LOADING SEQUDICE AND POWER TRANSFER, EMERGUTCY CORE COOLING SYSTD4 AND REACTOR BUILDInt; COOLING SYST24 PERIODIC TESTING h-39 h.5.1 D4ERGDICY LOADING SEQUENCE h-39 h.5.2 EMERGENCY CORE COOLING SYSTD4

• h-kl h $.3 REACTOR BUILDING COOLING AND IS0!ATION SYST.":.M h !!3 k.> A DECAY HEAT REMOVAL SYSTEM LEAFACE h-45 u 1492 088

TABLE OF CONTENTS Section Page 4.6 neRGENCY POWER SYSTC4 PERIODIC TESTS h h6 .

h.7 REACTOR CONTROL ROD SYSTD! TESTS h kB k.7.1 CONTROL ROD DRIVE SYSTDt FUNCTIONAL TESTS k-48 h.7.2 CONTROL ROD PROGPAM VERIFICATION k-50 h.8 MAI!T STEAM ISOLATION VALVES 4-51 h.9 EMERGCICY FEEDWATER PUMPS PERIODIC TESTING k-52 h.9 1 TEST k-52 k.9 2. ACCEPTANCE CRITERIA 4-52 h.10 REACTIVITY ANOMALIES h-53 k.11 SITE ENVIRONMEiTAL RADIOACTIVITY SURVEY h-5h h.12 AIR TREAT!ENT SYSTe4 -

h-55 h.12.1 E!ERGENCY CONTROL ROOH AIR TREATMENT SYSTD4 h-55 h.12.2 PIACTOR' BUILDING PURGE AIR TREATMDIT SYSTEM h-55b l k.12.3 AUXILIARY AND FUEL HANDLING EXHAUST AIR TREATMENT SYSTD4 h-55d h.13 RADIOACTIVE MATERIALS SOURCES SURVEILIANCE h-56 h.lh Delated l k.15 MAIN STFAM SYSTE4 INSERVICE INSPECTION h-58 5.1 DESIGN FEAWRES 5-1 5.1 SITE .

' 5-1 5.2 CONTAINMENT 5-2 5 2.1 REACTOR BUILDING 5-2 5.2.2 REACTOR BUILDING ISOLATION SYSTD4 5-3 5.3 REACTOR -

5h 5.3.1 REACTOR CORE 5h 5 3.2 REACTOR COOLANT SYSTD4 5k 5.h NEW AND SPENT MEL STORAGE FACILITIES 5-6 5.h.1 NEW FUEL STOPAGE 5-6 5.h.2 SPENT FUEL STORAGE 5-6 5.5 - AIR INTAKE 'IUNNEL FIRE PROTECTION SYSTD4S 5-8 6 ADMINISTRATIVE CCNTROLS 6-1 6.1 ORGANIZATION. REVIEV. AND AUDIT 6-1

'6.2 STATION OPERATING PROCEDURES 6-2 6.3 ACTIONS TO BE TAJGN IN THE EVENT OF AN ABNORMAL OCCURRENCE III STATION OPERATION 6-3 6.h ACTION TO BE TAFEN IN THE EVENT A SAFETY LIMIT IS EXCEEDED 6.h 6.5 STATION OPERATING RECORDS 6-5 6.6 RADIOLOGICAL CONTROLS -

6-7 6.7 STATIO:i REPORTING P20UIRDtENTS 6 6.7.1 SD!I-ANNUAL OPERATING REPORTS 6-8 6.7.2 NON-ROUTINE REPORTS 6-11 6.7.3 SPECIAL REPORTS 6-12 0hh [ .

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3.15 AIR TREATMENT SYSTEMS 3.15.1 EMERGENCY CONTROL ROOM AIR TREATMENT SYSTEM Apglicabilitr Applies to the emergency control room air treatment system and its associated filters.

gbiective To specify minimum availability and efficiency for the emergency control room air treatment system and its associated filters.

Specification ,

3.15.1.1 Except as specified in Specification 3.15.1.3 below, at least one emergency treatment system, AH-E18A fan and associated filter AH-F3A or AH-E18B faa and associated filter AH-F3B shall be operable at all times, per the requirements of Specification 3.15.1.2 below, when containment integrity is required.

3.15.1.2 a. The results of the in-place DOP and halogenated hydrocarbon tests at design flows on HEPA filters and charcoal absorber banks shall show <l% DOP penetration and <l% halogenated hydrocarbon penetration when tested in accordance with ANSI N510-1975, except that the DOP test will be conducted with pre-filters installed,

b. The results of laboratory carbon sample analyses shall show

>90% radioactive methyl iodide decontamination efficiency when tested in accordance with ANSI N510-1975 (125 F, 95% R.H.) .

c. The fans AH-18A and 18B shall each be shown to operate within

+ 4000 CFM of design flow (40,000 CFM) when tested in accordance with ANSI N510-1975.

3.15.1.3 a. From and af ter the date that one control room air treatment system is made or found to be inoperable for any reason, reactor operation is permissible only during the succeeding thirty days unless both circuits are sooner made operable.

b. From and af ter the date that both control room air treatment systams are made or found to be inoperable for any reason, reactor operation is permissible only during the succeeding seven days unless one or both circuits are sooner made operable.

3.15.1.4 If these conditions cannot be met, reactor shutdown shall be initiated and the reactor shall be in cold shutdown within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.

Bases 1492 0g0, The emergency control room air treatment systems AH-E18A and 18B and their associated filters are two independent systems designed to filter the control room atmosphere for intake air and/or for recirculation during control room isolation conditions. The control building is designed to be automatically placed in the recirculation mode upon an RM-Al high radiation alarm, air tunnel device actuation, ESAS actuation or station blackout condition. The emergency control room air treatment fan and filter AH-E18A or B and AH-E3A or B is designed to be manually started by the operator if a high radiation alarm from RM-Al is indicated.

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Prefilters and high efficiency particulate absolute (HEPA) filters are installed before the charcoal absorbers to prevent clogging of the iodine absorbers and remove particulate activity. The charcoal absorbers are installed to reduce the potential intake of radioiodine to the control room. If the efficiencies of the HEPA filters and charcoal absorbers are as specified, the resulting doses will be less than the allowable levels stated in Criterion 19 of the General Design Criteria for Nuclear Power Ple *.s, Appendix A to 10 CFR Part 50. Operation of the fans significantly

/,1fferent from the design flow will change the removal efficiency of the HEPA filters and charcoal absorbers.

If one system is found to be inoperable, there is no immediate threat to the control room and reactor operation may continue for a limited period of time while repairs are being made. If the syste=

cannot be repaired within thirty days, the reactor is shutdown and brought to cold shutdown within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.

If both systems are found to be inoperable, there is no immediate threat to the control room and reactor operation may continue for a limited period of time while repairs are being made. If at least one of the systems cannot be repaired within seven days, the reactor is shutdoun and brought to cold shutdown within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.

Re fe r ences (1) FSAR Section 9.8 (2) FSAR Figure 9-21 1492 091 3-62

3.15.2 REACTOR BUILDING PURGE AIR TREATMENT SYSTEM Applicability Applies to the reactor building purge air treatment systam and its associated filters.

Objective To specify minimum availability e d efficiency for the reactor building purge air treatment system and its asst tat-d filters.

Specification -

- 3.15.2.1 Except as specified in Specification 3.15.2.3 below, the Reactor Building Purge Air Treatment System filter AH-71 and fans AH-E7A and B shall be operable as defined by the Specification below.

at all times.

3.15.2.2 a. The results of the in-place DOP and halogenated hydrocarbon tests at cesign flows on HEPA filters and charcoal absorber banks for AH-F1 shall show <1% DOP penetration and <1% halogenated hydrocarbon penetration when tested in accordance with ANSI N510-1975, except that the DOP test will be conducted with pre-filters installed.

b. The results of laboratnew carbon sample analysis f rom the reactor building purg- cn tem filter carbon shall show >90%

radioactive methyl iod1_e decontamination efficiency when tested in accordance with ANSI N510-1975 (250 F, 95% R.H.).

c. Fans AH-E7A and E shall each be shown to operate within i 2,500 CFM of design flow (25,000 CFM) when tested in accordance with ANSI N510-1975.

3.15.2.3 a. From and af ter the date that the filter AH-F1 in the reactor building purge system is made or found to be inoperable as defined by Specification 3.15.2.2 above, or both fans AH-E7A and B are found to be inoperable, reactor operation is permissible only during the succeeding thirty days, unless such ffiter and at least one fan is sooner made operable.

b. If the required conditions for the reactor building purge filter and fan cannot be met af ter 30 days, operations shall be terminated immediately and the reactor placed in cold ahutdown within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.

Bases The Reactor Building Purge Exhaust system filter AH-F1 while normally used to filter all reactor building exhaust air, serves also as the post accident purge filter when used in conjunction with the Hydrogen Purge System to reduce hydrogen gas concentrations in the reactor building following a LOCA. It is necessary to demonstrate operability of these filters to assure readiness for service if required, approximately thirty (30) days following a hypothetical LOCA.

1492 092

High efficiency particulate absolute (HEPA) filters are installed before the charcoal absorbers to prevent clogging of the iodine absorbers for all emergency air treatment systems. The charcoal absorbers are installed to reduce the potential release of radioiodine to the environment.

If the efficiencies of the HEPA filters and charcoal absorbers are as specified, the resulting doses will be less than the 10 CFR 100 guidelines for the accident analyzed in FSAR Supplement 1 Part III, which assumes 90% efficiency.

The flow through AH-F1 by design can vary from O CFM to 50,000 CFM, the maximum purge flow rate, with make-up air being provided between the filter AH-F1 and the fans AH-E7A and B to maintain a constant reactor building purge exhaust stack flow rate of 50,000 CFM regardless of the actual purge flow.

Re fe rences (1) FSAR Section 5.3.3 (2) FSAR Section 5.6 (3) FSAR Section 9.8 1492 093 3-64

3.15.3 AUXILIARY AND FUEL HANDLING EXHAUST AIR TREATMENT SYSTEM Applicability

? plies to the auxiliary and fuel handling exhaust air treatment system.

Objective To specify the minimum availability and efficiency for the auxiliary and fuel handling exhaust air treatment system.

Specification 3.15.3.1 The auxiliary and fuel handling buildings exhaust air treatment system shall be operable at all times when fuel handling operations are in progress in the Fuel Handling Building. This applies to the exhaust filters AH-F2A, 2B, 2C, and 2D as well as the exhaust f ans AH-E14A,14B,14C, and 14D.

From and af ter the date ' hat the fuel handling air treatment system is made or found to be inoperable, that is the filters AH-F 2A, B, C, and D and/or both sets of fans AH-E 14A and C and AH-E 14B and D, are inoperable, fuel handling operations shall be terminated immediately until the components are returned to service.

3.15.3.2 a. The results of the in-place DOP and halogenated hydrocarbon tests at design flows on HEPA filters and charcoal absorber banks shall show <1% DOP penetration and <1% halogenated hydrocarbon penetration when tested in accordance with ANSI N510-1975, except that the DOP test will be conducted with prefilters installed.

b. The results of laboratory carbon sample analysis shall show

>90% radioactive methyl iodide decontamination efficiency when tested in accordance with ANSI N510-1975 (125 F, 95% R.H.) .

c. Each set of fans AH-E14 A & C and AH-E14 B & D shall each be shown to have the capacity of operating within i 11,881 CFM of design flow (118,810 CFM) when tested in accordance with ANSI N510-1975.

Bases The Auxiliary and Fuel Handling Building Exhaust System consists primarily of the exhaust filters AH-F2A, B, C, and D and two sets of redundant exhaust f ans AH-E14A and C or AH-E14B and D which take the exhaust air from both the Auxiliary Building and the Fuel Handling Building and discharge it to the Auxiliary and Fuel Handling building exhaust stack. All the air passes through the exhaust filtens AH-F2A, B, C, and D 100% of the time prior to being discharged to the stack.

High efficiency particulate absolute (HEPA) filters are installed before the charcoal absorbers to prevent clogging of the iodine absorbers for all emergency air treatment systems. The charcoal absorbers are installed to reduce the potential release of radiciodine to the environment.

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3-65

If the efficiencies of the HEPA filters and charcoal absorbers are as specified, the resulting doses will be less than the 10 CFR 100 guidelines for the accidents analyzed in Chapter 14 of the FSAR, which assumes 90%

efficiency.

I' the auxiliary and fuel handling exhaust air s} stem is found to be inoperable, all fuel handling and fuel movement operations will be terminated until the system is made operable.

References (1) FSAR Section 9.8 (2) FSAR Figure 9-20 0

3-66 1492 095

TABLE 4.1-2 MINIPUM EQUIPMENT TEST FREQUENCY Item Test Frequency

1. Control Rods Rod drop time of all Each refueling shutdown full length rods

2. Control Rod Movement of each rod Every two weeks, when reactor Movement is critical

3. Pressurizer Safety Setpoint 50% each refueling period Valves

4. Main Steam Safety Setpoint 25% each refueling period Valve.1

5. Refueling System Functional Start of each refueling period Interlocks

6. Main Steam (See Section 4.8)

Isolation Valves

7. Reactor Coolant Evaluate Daily, when reactor coolant System Leakage system temperature is greater than 525 F

8. Air Treatment See Section 3.15 See Section 4.12 Systems

9. Spent Fuel cooling Functional Each refueling period prior to System fuel handling

10. Intake Pump House (a) Silt Accumulation- Each refteling period Floor Visual inspection of Intake (Elevation 262 Ft Pump House Floor 6 in.) (b) Silt Accumulation Quarterly Measurement of Pump House Flow 1492 096 4-8

4.12 AIR TREATMENT SYSTEMS 4.12.1 EMERGENCY CONTROL ROOM AIR TREATMENT SYSTEM Applicability Applies to the emergency control room air treatment system and associated components.

Objective To verify that this system and associated components will be able to perform its design functions.

Specification 4.12.1.1 At least every refueling interval, the pressure drop across the combined HEPA filtera and charcoal absorber banks of AH-F3A and 3B shall be demonstrated to be less than 6 inches of water at system design flow rate.

4.12.1.2 a. The tests and sample analysis required by Specification 3.15.1.2 shall be performed initially and at least once per year for standby service or after every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of system operation and following significant painting, fire or chemical release in any ventilation zone connunicatik with the system.

b. DOP testing shall be performed on the affected portions of the filter af ter each complete or partial replacement of the HEPA filter bank or af ter any structural maintenance on the system housing.

c. Halogenated hydrocarbon testing shall be performed on the affected portion of the filter after each complete or partial replacement of the charcoal absorber bank or af ter any structural maintenance on the system housing.

d. Each AH-E18A and B (AH-F3A and B) fan / filter circuit shall be operated at least 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> every month.

4.12.1.3 At least once per refueling interval, automatic initiation of the Control Building isclation and recirculation Dampers AH-D28, 37, 39, and 36 shall be demonstrated as operable.

Bases Pressure drop across the combined HEPA filters and charcoal absorbers of less than 6 inches of water at the system design flow rate will indicate that the filters and absorbers are not clogged by excessive amounts of foreign matter. Pressure drop should be Atermined at least once per refueling cycle to show system performance capability.

1492 097 4-55

The frequency of tests and sample analysis are necessary to show that the HEPA filters and charcoal absorbers can perform as evaluated. Tests of the charcoal absorbers with halogenated hydrocarbon shall be performed in accordance with approved test procedures. Replacement absorbent should be qualified according to Regulatory Guide 1.52 June 1973. The charcoal absorber effit .ency tert orocedures should allow for the removal of one absorber tray, emptying of one bed from the tray, mixing the absorbent thoroughly and obtaining at least two semples. Each sample should be at least two inches in diameter and a length equal to the thickness of the bed. If test results are unacceptable all absorbent in the system shall be replaced. Tests of the HEPA filters with DOP aerosol shall also be performed in accordance with approved test procedures. Any HEPA f'.lters found defective should be replaced with filters qualified accccding to Regulatory Guide 1.52 June 1973.

Operation of the system for 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> every month will demonstrate operability of the filters and absorber system and remove excessive moisture built up on the absorber.

If significant painting, fire or chemical release occurs such that the HEPA filter or charcoal absorber could become contaminated from the fumes, chemicals or foreign materials, the ss,e tests and sample analysis shall be performed as required for cperational use. The

, determination of significance shall be made by the Unit Superintendent.

Demonstration of the automatic initiation of the recirculation mode of operation is necessary to assure system performance capability.

}kh2 4-55a

4.12.2 REACTOR BUILDING PURGE AIR TREATMENT SYSTEM Applicability Applies to the reactor building purge air treatment system and associated components.

Objective To verify that this system and associated components will be able to perform its design functions.

Specification 4.12.2.1 At least once per refueling interval, it shall be demonstrated that the pressure drop across the combined HEPA filters and charcoal absorber banks is less than 6 inches of water at system design flow rate.

14.2.2.2 a. The tests and sample analysis required by Specification 3.15.2.2, filter AH-F1 shall be performed initially and each 18 montas or after each 720 Fours of operation and following significant painting, fire, or chemical release in any ventilation zone communicating with the system.

b. DOP testing shall be performed on the affected portion of the filter after each complete or partial replacement of a HEPA filter bank or af ter any structural maintenance on the system housing.

c. Halogenated hydrocarbon testing shall be performed on the affected portions of the filter after each complete or partial replacement of a charcoal absorber bank or after any structural maintenance on the system housing.

d. The Reactor Building purge exhaust fans AH-E7A and B shall be operated at least 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> every month, either during cetual purging or using makeup air.

Bases Pressure drop across the comoined HEPA filters and charcoal absorbers of less than 6 inches of water at the system design flow rate will indicate that the filters and absorbers are not clogged by excessive amounts of foreign matter. Pressure drop should be determined at least once every refueling interval to show system performance capability.

The frequency of tests and sample analysis are necessary to show that the HEPA filters and charcoal absorbers can perform as evaluated. Tests of the charcoal absorbers with halogenated hydrocarbon refrigerant shall be performed in accordance with approved test procedures. The charcoal absorber efficiency test procedures should allow for the removal of one absorber tray, emptying of one bed from the tray, mixing the absorbent thoroughly and obtaining at least two samples. Each sample should be at least two inches in diameter and a length equal to the thickness of the bed. If test results are unacceptable, all absorbent in the 1492 099 4-55b

system should be replaced with an absorbent qualified according to Regulatory Guide 1.52 June 1973. Tests of the HEPA filters with DOP aerosol shall also be perDrmed in accordance with approved test procedures. Any HEPA filters found defective should be replaced with filters qualified according to Regulatory Guide 1.52 June 1973.

Operation of the emergency air treatment system each month for at least ten (10) hours will demonstrate operability of the fans and when operated in the purge mode will tend to cause the filter and absorber system to remove axcessive moisture built up on the absorber.

If significant painting, fire, or chemical release occurs such that the HEPA filter or charcoa' cbsorber could become contaminated from the fumes, chemicals or foreign .derial, the same tests and sample analysis shall be performed as requirr: lor operational use. The determination of significant shall be made by the Unit Superintendent.

1492 100 4-55c

4.12.3 AUXILIARY AND FUEL HANDLING EXHAUST AIR TREATMENT SYSTEM Applicability Applies to the auxiliary and fuel handling building exhaust air treatment system and associated components.

Objective To verify that this system and associated components will be able to perform its design functions.

Specification 14.2.3.1 At least once per refueling interval, it shall be demonstrated that the pressure drop across the combined absorber banks is less than 6 inches of water at system design flow rate.

14 .2. 3.2 a. The tests and sample analysis required by Specifications 3.15.3.2 shall be performed within 30 drys prior to the initiation of each refueling outage ana following significant painting, fire or chsmical release in any ventilation rene communicating with the system.

b. DOP testing shall be performed on the effected portions of the filter after each complete or partial replacement of a HEPA filter bank or after any structural maintenance en the system housing.

c. Halogenated hydrocarbon testing shall be performed on the affected portions of the filter after each complete or partial replacement of a charcoal absorber bank or af ter any structural maintenance on the AH-F 2A, B, C, or D housing.

d. The fan combination AH-E 14A and C and AH-E 14B and D shall be operated at least 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> every month.

3ases Pressure drop across the combined HEPA filters and charcoal aosorbers of less than 6 inches of water at the system design flow rate will indicate that the filters and absorbers are not clogged by excessive amounts of foreign matter. Preseure drop should be determined at least once every refueling interval to show system performance capability.

'Ihe frequency of testa and sanple analvsis are necessary to show that the HEPA filters and charcoal absorber can perform as evaluated. Tests of the charcoal absorbers with halogenated hydrocarbon refrigerant shall be performed in accordance with approved test procedures. The charcoal absorber efficiency test procedures should cllow for the removal of one absorber tray, emptying of one bed from the tray, mixing dhe absorbent thoroughly and obtaining at least two samples. Each sample should be at least two inches in diameter and a len2th equal to the thickness of the bed. If test re. J.ts are unacceptable, all absorbent in the system 4-55d 1492 101

should be replaced with an absorbent qualified a cording to Regulatory Guide 1.52 June 1973. Tests of the HEPA filters with DOP aerosol shall be performed in accordance with approved procedures. Any HEPA filters found defective should be replaced with filters qualified according to Pegulatory Guide 1.52 June 1973.

Operation of the Auxillary and Fuel Handling Building Exhaust Fans each month for at least ten (10) hours will demonstrare operability of the f ans .

If significant painting, fire, or chemical release occurs such that the HEPA filter or charcoal absorber could become contaminated from the fumes, chemicals or foreign material, the same teste and sample ,

analysis shall be performed as required for operational use. The determination of significant shall be made by the Unit Superintendent.

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