ML20214S259

Forwards Overhead Projections Used During 870406 Meeting W/ Region IV Re Design Basis Reconstitution

ML20214S259
Person / Time
Site:	Fort Calhoun
Issue date:	05/21/1987
From:	Andrews R OMAHA PUBLIC POWER DISTRICT
To:	Gagliardo J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
NUDOCS 8706090200
Download: ML20214S259 (27)

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Omaha Pubilt Power District 1623 Harney Omaha, Nebraska 68102-2247 402/536-4000 W@MOMM ll l

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May 21, 1987 LIC-87-355 lip'

.)i J. E. Gagliardo, Chief Reactor Projects Branch U.S. fluclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Tx. 76011

Reference:

1.

Docket flo. 50-285 Gentlemen:

SUBJECT:

Design Basis Presentation On April 6, 1987, OPPD personnel met with Region IV Management to discuss our efforts on Design Basis reconstitution. As promised at that time, a copy of the overhead projections used for our presentation are attached.

We appreciate the opportunity to present our plans to you.

If you have any questions or concerns, please feel free to contact us.

/SinreM R. L. Andrews Division Manager fluclear Production RLA/me c:

LeBoeuf, Lamb, Leiby & MacRae R. D. Martin, flRC Regional Administrator i

W. A. Paulson, f1RC Project Manager P. H. Harrell, flRC Senior Resident Inspector 8706090200 G70521 PDk ADOCK 05000?G5 FOR p

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t ONAHA PUBLIC POWER DISTRICT FORT CALHOUN STATION UNIT NO. 1 DESIGN BASIS RECONSTITUTION

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APRIL 6, 1987

FORT CALHOUN STATION DESIGN BASIS INDEX TO OVERHEADS:

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' FORT CALHOUN STATION DESIGN BASIS PROJECT - BACKGROUND 2

DESIGN BASIS - DEFINITION 3

TYPICAL DOCUMENTS THAT PROVIDE THE DESIGN BASIS 4

0BJECTIVES FOR DESIGN BASIS PROJECT 5

TASKS COMPLETED TO VERIFY / RECONSTITUTE DESIGN BASIS 6

TASKS UNDERWAY TO VERIFY / RECONSTITUTE DESIGN BASIS 7

LESSONS LEARNED FROM PILOT PROJECT 8

INTERIM POSITION ON DESIGN BASIS 9

TECHNICAL APPROACH TO RECONSTITUTION OF DESIGN BASIS 10

'kECONSTITUTIONOFDESIGNBASIS 11 DESIGN DEVELOPMENT - FLOW CHART 12 DESIGN BASIS RECONSTITUTION - FLOW CHART 13 SELECTION AND PRIORITIZATION OF CANDIDATE SYSTEMS FOR DBD DEVELOPMENT 14 FORT CALHOUN STATION DESIGN BASIS - PROJECT SCHEDULE 15 DESIGN BASIS VERIFICATION - ACTIVITIES PLANNED & COMPLETED 16 FORT CALHOUN STATION DESIGN BASIS - CONCLUSIONS L

FORT CALHOUN STATION DESIGN BASIS PROJECT BACKGROUND:

PROJECT INITIATED PER RECOMMENDATION FROM OPPD'S DESIGN CHANGE MODIFICATION CONTROL PROGRAM REVIEW COMMITTEE.

PRIMARY' AIM

'TO-CREATE A TOOL TO ASSIST OPPD ENGINEERS IN THE PREPARATION OF DESIGN PACKAGES -AND SAFETY EVALUATIONS, THEREBY INDIRECTLY IMPROVING THE-TIMELINESS AND EFFICIENCY OF THE DESIGN CHANGE PROCESS.

TO ENHANCE QUALITY AND COMPLETENESS OF DOCUMENTATION INCLUDED IN THE SAFETY EVALUATIONS AND DESIGN PACKAGES.

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DESIGN BASIS THE DESIGN BASIS OF FORT CALHOUN IS THAT INFORMATION WHICH IDENTIFIES:

1)

THE SPECIFIC FUNCTIONS TO BE -PERFORMED BY THE STRUCTURES, SYSTEMS AND COMPONENTS; AND

2) THE SPECIFIC VALUES OR RANGES OF VALUES CHOSEN FOR CONTROLLING PARAMETERS AS REFERENCED B0UNDS FOR DESIGN. THESE VALUES MAY BE:

a) RESTRAINTS DERIVED FROM GENERALLY ACCEPTED " STATE OF THE ART" PRACTICES FOR ACHIEVING FUNCTIONAL G0ALS OR b)

REQUIREMENTS DERIVED FROM ANALYSIS (BASED ON CALCULATIONS AND/0R EXPERIMENTS)

AND/0R REGULATORY REQUIREMENTS OF THE EFFECTS OF A POSTULATED ACCIDENT FOR WHICH A STRUCTURE, SYSTEM, OR COMPONENT MUST MEET ITS FUNCTIONAL GOALS.

REFERENCE:

10 CFR 50.2 2

TYPICAL DOCUMENTS THAT PROVIDE THE DESIGN BASIS

• DOCUMENTS CONTAINING DESIGN INPUTS (E.G., INTERFACE REQUIREMENTS FROM NSSS VENDOR)

• DOCUMENTS CONTAINING RESULTS OF DESIGN PROCESS-(CALCULATIONS: ACCIDENT ANAlfSIS, ETC.)

• DESIGN OUTPUT DOCUMENTS (USAR, DRAWINGS, SPECIFICATIONS,ETC.)

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OBJECTIVES FOR DESIGN BASIS PROJECT PURPOSE THE DESIGN BASIS DOCUMENTS WILL BE USED FOR:

• PLANT MODIFICATION ACTIVITIES

• SAFETY EVALUATION

• TRAINING

• UPDATING USAR CONSTRUCTION OA RECORDS LOCATE AND SORT FORT CALHOUN CONSTRUCTION QA RECORDS CREATE KEYWORD RETRIEVABLE COMPUTER INDEX OF CONSTRUCTION QA RECORDS l

DESIGN BASIS RECORDS AND DOCUMENTS 1

LOCATE AND S0RT FORT CALHOUN DESIGN BASIS RECORDS CREATE KEYWORD RETRIEVABLE COMPUTER INDEX OF DESIGN BASIS RECORDS DEVELOP PLANT LEVEL DESIGN BASIS DOCUMENTS FOR ISSUES THAT ARE COMMON TO MORE THAN ONE SYSTEM, (E.G., FIRE HAZARD ANALYSIS) l DEVELOP SYSTEM ORIENTED DESIGN BASIS DOCUMENTS DEVELOP METHOD TO CONTROL AND UPDATE DESIGN BASIS DOCUMENTS 4

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L-TASKS COMPLETED TO VERIFY / RECONSTITUTE DESIGN BASIS

• DRAWING UPDATE AND P&ID WALKDOWN

• IE BULLETIN 79-02 AND 79-14

• ELECTRICAL EQUIPMENT QUALIFICATION

• COMPUTERIZED HISTORY AND MAINTENANCE PLANNING SYSTEM (CHAMPS)

• RADIATION CALCULATIONS

• COMPUTERIZED CABLE AND CONDUIT SCHEDULE

• EVALUATION OF A/E'S AND CONSULTANTS

• VITAL AREA BARRIER STUDY

• OTHERS i

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b TASKS UNDERWAY TO VERIFY / RECONSTITUTE DESIGN BASIS l

• UPDATE OF THE FIRE HAZARD ANALYSIS

• SYSTEM DESCRIPTIONS

• SCREENING 0F A/E AND CONSTRUCTION QA RECORDS

• COMMITMENT TRACKING

• USAR VS TECHNICAL SPECIFICATIONS VERIFICATION

• SER INDEXING

• PILOT PROJECT FOR RECONSTITUTION OF DESIGN BASIS FOR AFWS P

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f LESSONS LEARNED FROM PILOT PROJECT BACKUP DOCUMENTATION SHOULD BE EASILY RETRIEVABLE (E.G., CALCULATIONS, ANALYSES, ETC.)

• DEVELOP A PROGRAM PLAN AND WRITER'S GUIDE

• ENSURE AVAILABILITY OF NSSS RECORDS

• ESTABLISH UPDATING REQUIREMENTS I

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INTERIM POSITION ON DESIGN BASIS MODIFICATIONS AND SAFETY EVALUATIONS:

THE FOLLOWING DOCUMENTS SHALL BE USED AS REFERENCE DOCUMENTS FOR DETERMINING THE DESIGN BASIS OF AN EXISTING SYSTEM:

USAR IN CONJUNCTION WITH ANY PENDING CPANGES TECHNICAL SPECIFICATIONS INCLUDING BASIS SECTION SER'S REFERENCED IN THE TECHNICAL SPECIFICATIONS DESIGN DRAWINGS ADDITIONALLY, IF THE CALCULATIONS OR ACTUAL DESIGN REQUIREMENTS ARE NOT AVAIL-ABLE IN TI:E AB0VE LIS1ED 00LUMENTS, THE DESIGN CHANGES SHALL BE BASED ON THE ASSUMPTION THAT NO DESIGN MARGINS EXIST UNLESS JUSTIFIED OTHERWISE BASED ON CONSERVATIVE ASSUMPTIONS AND/0R ACTUAL FIELD VERIFICATION. ALTERNATIVELY, THE CALCULATIONS WILL BE REDONE TO ESTABLISH DESIGN MARGINS AND DESIGN BASIS WILL BE RECREATED ON AN AS NEEDED BASIS.

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TECHNICAL APPROACH TO RECONSTITUTION OF DESIGN BASIS 9

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RECONSTITUTION OF DESIGN BASIS THIS. INVOLVES:

LOCATE AND S0RT POTENTIAL DESIGN BASIS RECORDS

_ GENERATE A SET OF PLANT LEVEL DESIGN BASIS DOCUMENTS i

GENERATE DESIGN BASIS DOCUMENTS FOR SELECTED PLANT SYSTEM i

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4 SELECTION AND PRIORITIZATION OF CANDIDATE SYSTEMS-FOR DBD DEVELOPMENT FACTORS WHICH WILL BE CONSIDERED IN PRIORITIZING CANDIDATE SYSTEMS ARE:

1 I)

FREQUENCY OF-SYSTEM MODIFICATIONS 2)

SYSTEM NUCLEAR SAFETY IMPORTANCE i

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F0RT CALH00N STATION DESIGH BA SIS PROJECT-SCHEDULE BY TASK OESCRIPTION JAN87 JUN87 JAN88_

JUN88 JANP9 JUN89 JAN90 PNASE I: RECORD INDEXING & COMPILATION I

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TASK 1: BEKINS RLDG. RECORDS

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TASK 2s ALL OTHER OPPD RECORDS XXXXXXXXXXXXXXXXXXXXXXXXX I

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TASK 3: CE RECORDS XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 1

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TASK 4: GE RECORDS (IF NECESSARY)

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TASK 5: OTHER VENDORS AS NECESSARY

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I FMASE II: P l a n t L e v e l D B D ' s.........,.........................................................................................

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I TASK 1: SELECTION OF CANDIDATE TOPICS XXXXXXXXXXXXX 1

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TASK 2: DEVELOPMENT OF TOPICAL DBD'S XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX I

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-1 I-I PHASE !!!: SYSTEM 08D'S..........................................................................................................

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TASK 2: 000 REQUIREMENT SECTION XX XXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXX------ ------------------- - - --

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TASK 4: PHYSICAL VERIFICATI0H XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX I

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I PNASE IV: MISSING RECORDS.............................................................................................,......

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PnASE V: REVISIONS TO DBD........................................................................................................

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I PnASE VI: COMPUTER SOFTWARE & LOADING........................................................................................*...

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JAN87 JUN87 JAN88 JUN88 JAN89 JUN89 JAN90 M

DESIGN BASIS VERIFICATION ACTIVITIES UNDER CONSIDERATION REVIEW NORMAL, EMERGENCY, AND ABNORMAL OPERATING PROCEDURES TO VERIFY THAT THESE PROCEDURES ARE WRITTEN IN ACCORDANCE WITH THE DESIGN BASIS.

FUNrIIONALITY CHECK - VERIFY THE ABILITY OF SAFETY SYSTEMS AND REQUIRED SUP-PORT SYSTEMS TO PERFORM THEIR INTENDED FUNCTIONS IN NORMAL AND POST ACCI-DENT MODES.

LIMITED SCOPE SSFI'S (AUDITS) - VERIFY ADEQUACY OF MAINTENANCE, IN-SERVICE INSPECTION AND TRAINING ACTIVITIES.

REVIEW MODIFICATION PACKAGES TO CONFIRM ADEQUACY OF SAFETY EVALUATIONS.

ACTIVITIES COMPLETED VERIFICATION AND RECREATION OF SEISHIC DESIGN BASIS 0

• 79-02 AND 79-14 EFFORT

• TECHNICAL RESOLUTION OF A-46 (NOT COMPLETED) 10CFR50.49.- DESIGN BASIS FOR ELECTRICAL EQUIPMENT REQUIRED FOR POST ACCI-DENT OPERATION WAS RECREATED AND VERIFIED PER 10CFR50.49.

DOCUMENT UPDATING EFFORT -

MODIFICATION PACKAGES UPDATED I 053 MAINTENANCE ORDERS REVIEWED 30.400 DRAWINGS UPDATED 2.363 NEW DRAWINGS CREATED 265 P&ID WALKDOWNS DONE 3 TIMES CHAMPS DATA BASE (20,400 PIECES OF EQUIPMENT)

OTHER 15

FORT CALHOUN STATION DESIGN BASIS CONCLUSIONS INTERT: POSITION ADEQUATE TO SUPPORT MODIFICATION AND SAFETY EVALUATION ACTIV1,4ES QUALITY OF AS-BUILT DRAWINGS NEED TO PURSUE DESIGN BASIS RECONSTITUTION PROJECT IN AN ORDERLY MANNER TO ENHANCE QUALITY AND EFFECTIVENESS INTEGRATE THIS EFFORT WITH OTHER ACTIVITIES:

USAR UPDATE COMMITMENT TRACKING CE OWNER'S GROUP EFFORT RESOLUTION OF A-46, ETC.

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DESIGN BASIS VERIFICATION FUNCTIONALITY CHECK ON COMPLETION OF DESIGN BASIS PROJECT, OPPD INTENDS TO VERIFY THAT. SAFETY SYSTEMS AND OTHER SELECTED SYSTEMS CAN PERFORM THEIR INTENDED FUNCTIONS.

-THIS VERIFICATION IS INTENDED TO BE DONE AS FOLLOWS:

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a) REVIEW OF OPERATII.G EXPERIENCE T0 VERIFY THAT SYSTEMS CAN PERFORM THEIR INTENDED NORMAL OPERATING FUNCTIONS.

b) SYSTEMS THAT ARE REQUIRED TO FUNCTION IN POST ACCIDENT MODE WILL BE 1

REVIEWED TO VERIFY THAT THEIR ABILITY TO PERFORM THEIR INTENDED POST ACCIDENT FUNCTIONS WAS NOT COMPROMISED THROUGH MODIFICATION PROCESS.

I THIS REVIEW WILL BE BASED UPON:

REVIEW OF APPLICABLE MODIFICATION PACKAGES TO ENSURE THAT'APPRO-j.

PRIATE POST NODIFICATION FUNCTIONAL TESTING WAS DONE.

REVIEW 0F SURVEILLANCE TEST PROCEDURES AND IN-SERVICE PROGRAM.

i REVIEW 0F OPERATING EXPERIENCE.

SYSTEMS FOR WHICH THEIR ABILITY TO PERFORM INTENDED POST ACCIDENT FUNCTIONS CANNOT BE VERIFIED THROUGH A COMBINATION OF AB0VE ACTIONS WILL BE RETESTED UNLESS JUSTIFIED OTHERWISE.

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DESIGN BASIS DOCUMENTATION PACKAGE CONTENT.

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-1.0 -BASIJ FUNCTIONS 2.0 DESIGN INPUTS / REQUIREMENTS (Address 28 items from ANSI N 45.2.11) 3.0 DESIGN DESCRIPTION (Describe the system and justify compliance with Section 2.0)

.4.0 SPECIAL OPERATING CONSIDERATIONS 4.1 ' Technical: Specifications (Reference Tech. Spec.)

4.2 Set Point Precautions and Limitations (Top level information for calibration procedures)

. 5.0 SPECIAL MAINTENANCE AND TESTING CONSIDERATIONS 5.1 Maintenance Considerations 5.2~ Testing Considerations 6.0 IMPOSED INTERFACE REQUIREMENTS 7.0 SYSTEM MODIFICATION HISTORY 8.0--REFERENCE 9.0 DESIGN BASIS DOCUMENTATION REFERENCE

PLANT LEVEL DOCUMENTS Plant level documents are produced to record criteria, methods and analyses which can be treated most efficiently and conveniently in common documents.

The information in plant level documents lends itself to common treatment because it either:

1) Deals with the results of analyses of events which impact the integrity or function of multiple systems and/or structures or

2) Deals with criteria and/or methods which are generally appli-cable to many systems and/or structures The convenience and efficiency is realized by use of a single source for each of certain types of information.

This source can be used as a reference for system and component level information presented in design basis docu-ments (DBD) thereby reducing the amount of complex and repetitive detail which is put into the DBD.

In addition, treating common information in common documents tends to promote consistency in its use.

Most plants have developed some plant level documents, however, the extent to which they have been pursued and the titles and scope of such documents is highly variable. A list of plant level documents which might be prepared as an adjunct to the system / structure design basis documents is attached for illustration purposes.

At any given utility the existing plant level docu-ments may be dif ferent in number, scope and title.

UNITED intends to make full use of existing documents, modifying and supplementing them when that seems to be useful.

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PLANT LEVEL DOCUMENT EXAMPLES ANALYSIS OF EVENTS HAVING MULTIPLE SYSTEM / STRUCTURE IMPACT Reactor Protection Anaysis Plant Transient Analysis Amplified Response Spectra and Seismic Building Differential Movement Data Book Line Break Evaluations Environmental Chart Fire Hazards Analysis External Missile Analysis Security Evaluation Beam Verification Data Book Embedded Plate Verification Data Book Cable Tabulations or Separation Analysis 2 Over 1 and Proximity Analysis Radiation Zone Maps l

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17. Access and administrative control requirements 3.2 Requiremenu I'

The design input shall include but is not limited to d d

~ die M mh m the following,where applicable:

ments of structures, systems and components.

l. Basic functions of esch structure, system and

19. Failure effects requirements _of structures,sys.

component.

tems and components menudmg a definition of those

2. Performance reouirements such as espsetty, events and accidents which they must be design:d to rating, system output.

withstand.

3. Codes. standards.and reculatorv recuirements

20. Test requirements includine in. plant tests and including the applacsble issue and/or addends.

the conditions under wnich they will be oeriormed.

4. Desien conditions such as pressure, tempera-

21. Accessibility.msintenance.reasir and mservice ture, fluid chemistry anc volta;e.

inseection requirements for the plant meluding the

5. Loads such as seismic. wind. thermst and conditions under wtuen these will be performed.

dynamic.

22. Personnel reouirements and limitations in.

6. Environmental conditions _ anticipated dunns.

ciuding the qualifiestion and number of personnel storage, corntruction and operation such as pressure, availsble for plant operstion.msintenance. testing and temperature, humidity, corrosiveness, site elevstion, inspection and permissible personnel radiation ex.

wind direction, nuclear rsdistion, electrom3snetic posures for specified ste2s and conditions.

radiation and duration of exposure.

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23. Transoortsbility requirements such as size and

7. Interface reouirementiincluding definition of shipping weight,!mtitstions.1.C.C. reguistions.

24. Fire erotection or resistance reouirements.

the functional and physicalinterfsces involving strue.

25. Hancline.storsce_ and shiocine recuirements.

tures, systems and components.

26. _Other reouirements to prevent undue nsk to

8. Material recuirements includin: such items as the health and safety of the public.

compatibility, electnest insutstion pro'pernes, protec.

tive coatmg and corrosion resistance.

27. Materists, orocesses. parts and couiement

9. Mechanical requirements _such as vibration, suitable for applicauon.

stress, shock and rescuon forces.

23. Safety reouirements for oreventme personnel

10. Structural reouirements covering such items as including such items as rsdi2 tion nszstds, re.

equipment foundstions and pipe supports, strictine the use of dangerous maten215, esespe pro-

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- 11. Hydraulie requirements such as pump net visions from enclosures. and grounding of electrical positive suction heads (NPSH), ahowable pressure

,,,3 drops, and allowable fluid velocities.

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12. Chemistry reouirements such as provisions for

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I sampling and hmitations on water chemistry.

13. Electrical requirements such as source of power, voltage, raceway requirements, electrical in-sulation and motor requirements.

14. Lsyout and arrangement requiremen_ts

35. Operational reouirements under vanous condi-tions, such as plant startup, normal plant operation, plant shutdown. plant emergency operauon special or infrequent operation, and system sbnormal or emer.

gency operation.

16. Instrumentation and control requirements in-cluding indicatmg instruments. controls rnd aistms re.

quired for operation, testing, and maintenance.Other

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. requirements such as the type ofinstrument, installed spares, range of measurement, and location ofindica-tion should also be included.

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TECHNICAL APPROACH Phase I:

Record Indexing and Compilation Task 1: Screening and sorting of S&W indexed records Task 2:

Indexing.and sorting of all other records at various'0 PPD locations Task 3:

Indexing and compilation of CE Records pertaining to Fort Calhoun Task 4:

Indexing and compilation of GE Records pertaining to Fort Calhoun.(if required)

Task 5: -Indexing and compilation of other vendor records (if required)

Phase.II:

Development of Plant Specific (Topical) Design Basis Document (DBD)

Task 1: Selection of candidate-topics for DBD' development Task 2: Generation of topical DBD Phase III: Development of System' Design Basis Document Task 1: Selection and prioritization of candidate systems for DBD development Task 2: Prepare.DBD requirements section Task 3: Generate DBD Task 4: Physical verification Phase IV:

Evaluation and re-creation (if necessary) of missing records Phase.V:

Revisions to DBD's Phase VI:

Computer interface

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System Identifier Description MAIN STEAM AND TURBINE STEAM EXTRACTIONS MS 1

FW FEEDWATER AC.

AUXILIARY COOLANT AC-CCW COMPONENT COOLING AC-RW RAW WATER AC-SFP SPENT FUEL P0OL COOLING PS PLANT SECURITY STRUCTURES CONTAINMENT STRUCTURE-CONTAINMENT PENETRATION SYSTEM CONTAINMENT LEAK RATES AUXILIARY BUILDING H0ISTING EQUIPMENT (HEAVY-LOADS) i INTAKE STRUCTURE EMERGENCY RESPONSE FACILITY SECURITY BUILDING REACTOR REACTOR VESSEL AND SUPPORTS SHUT DOWN COOLING INTERLOCKS CEA POSITION INSTRUMENTATION-REACTOR INTERNAL STRUCTURES J

CONTROL ELEMENT ASSEMBLY REACTOR CORE FUEL AND SOURCE TERMS FUEL AND CORE MONITORING i

IN-CORE INSTRUMENTATION ELECTRICAL 22 KV 4.16KV ELECTRICAL FUNCTIONAL REQUIREMENTS INSTRUMENTATION AND CONTROL CONTROL ROOM INSTRUMENTATION AND CONTROL ALTERNATE SHUTDOWN i

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SYSTEMS UNDER CONSIDERATION System-Identifier Descriotion

.FW-AFW AUXILIARY FEEDWATER VA-CR CONTROL ROOM HABITABILITY CA-IA INSTRUMENT AIR "A.

DG EMERGENCY DIESEL GENERATORS i

F0-DG DIESEL FUEL JW DIESEL JACKET WATER SA STARTING AIR EE ELECTRICAL EQUIPMENT EE-8A 125 VDC EE-8B 120 VAC EE-5 480 MCC'S EE-4B 480 BUS FP FIRE PROTECTION AI-ESF ENGINEERED SAFEGUARDS AI-NI NUCLEAR INSTRUMENTATION AI-RPS REACTOR PROTECTION SYSTEM Al-RR REACTOR REGULATING SYSTEM PC-PLANT COMPUTER PC-ERF EMERGENCY RESPONSE FACILITY COMPUTER PC-QSP QUALIFIED SAFETY PARAMETER DISPLAY SYSTEM RC REACTOR COOLANT RM RADIATION MONITORING-SI SAFETY-INJECTION SI-CS CONTAINMENT SPRAY SI-HP HIGH PRESSURE SAFETY INJECTION SI-LP LOW PRESSURE SAFETY INJECTION CH CHEMICAL AND VOLUME CONTROL H2-P HYDROGEN RECOMBINER SL SAMPLING SL-PAS POST ACCIDENT SAMPLING SL-PRI PRIMARY SAMPLING SL-SEC SECONDARY SAMPLING VA VENTILATING AIR VA-AUX-AUXILIARY BUILDING HVAC VA-CON CONTAINMENT HVAC ONTAINMENT EMERGENCY COOLING SYSTEM l

VA-INT INTAKE STRUCTURE HVAC VA-TB TURBINE BUILDING HVAC l

WD WASTE DISPOSAL i

WD-G GASEOUS WASTE DISPOSAL WD-L LIQUID WASTE DISPOSAL WD-S SOLID WASTE DISPOSAL i

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