ML20148C597
| ML20148C597 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 03/18/1988 |
| From: | Kadambi N NRC |
| To: | |
| References | |
| NUDOCS 8803220447 | |
| Download: ML20148C597 (13) | |
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COMMISSION BRIEFING ON FULL POWER LICENSING 0F THE SOUTH TEXAS PROJECT, UNIT 1 MARCH, 1988 N. PRASAD KADAMBI PROJECT MANAGER (301) L192-1337
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OUTLINE BACKGROUND SITING PLANT DESIGN LICENSING MILESTONES CONSTRUCTION EXPERIENCE READINESS FOR OPERATION THE OPERATING LICENSE PRE-CRITICALITY OPERATIONS REVIEW 0F ALLEGATIONS FROM GAP l
l STAFF CONCLUSION l
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BACKGROUND 0WNERS HOUSTON LIGHTING a POWER COMPANY CENTRAL POWER CITY OF SAN ANTONIO CITY OF AUSTIN OPERATOR HOUSTON LIGHTING & POWER EXPERIENCE FIRST NUCLEAR PLANT FOR UTILITY SIGNIFICANT DIFFICULTIES DURING CONSTRUCTION PHASE OVERCOME SUCCESSFULLY l
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l SITING LOCATION MATAGORDA COUNTY, 10 MILES INLAND FROM GULF 0F MEXICO, PRIMARILY AGRICULTURAL AREA POPULATION 10-MILES: 2800 50-MILES: 300,000 N0 MAJOR CITY IN 50-MILE RADIUS.
i FULL-PARTICIPATION EXERCISE ON APRIL 8, 1987 l
ONSITE AND OFFSITE PREPAREDNESS i FOUND TO BE SATISFACTORY.
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PLANT DESIGN l !
VENDOR WESTINGHOUSE REACTOR AND TURBINE ARCHITECT / ENGINEER BROWN 8 ROOT UNTil 1981 BECHTEL AFTER 1981 CONSTRUCTOR BROWN 8 ROOT UNTIL 1981 EBASCO AFTER 1981 NSSS ONLY RESAR-41 IN U.S.
FOUR-LOOP, THREE-TRAIN SYSTEMS FOURTEEN FOOT CORE 3800 MWT CONTAINMENT CYLINDRICAL WITH HEMISPHERICAL TOP AND STEEL LINER UNIQUE FEATURES QUALIFIED DISPLAY PROCESSING SYSTEM LEAK-BEFORE-BREAK APPLICATION IN RCS AND BEYOND RCS TEMPERATURES MEASURED BY RTDs IN MAIN COOLANT PIPING BMI THIMBLE TUBE VIBRATION LIMITING DEVICE l
AUXILIARY FEEDWATER SYSTEM f
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LICENSING MILESTONES DECEMBER 1975 CP ISSllED JIJLY 1978 'FSAR DOCKETED MARCP 1986 DRAFT ENVIRONMENTAL STATEMENT ISSUED APRIL 1986 SAFETY EVALUATION ISSUED JUNE 1986 ADVISORY COMMITTEE ON REACTOR SAFEGUARDS FULL-COMMITTEE MEETit!G
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JUNE 1986 FINAL ENV!RONMENTAL STATEMENT AUGUST 1986 ASLB DECISION OM SAFETY HEARINGS DECEMBER 1986 MATERIALS LICENSE april 1087 EMERGEflCY PPEPAREONESS GRADED EXERCISE AUGUST 1987 LOW POWER LICENSF i
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CONSTRUCTION OVERVIEW 1
CONSTRUCTION HISTORY CONSTRUCTION PERMIT ISSUED DECEMBER 1975 WORK STOPPED UNDER SHOW CAUSE ORDER APRIL 1980 BECHTEL BECOMES A/E SEPTEMBER 1981 APPR0XIMATELY 32,500 NRC INSPECTOR MANHOURS ON CONSTRUCTION INSPECTIONSANDINVESTIGjTION, 17,600 MANHOURS FOR UNIT 1 INSPECTIONS (COMPLETED) 10,000 MANHOURS FOR UNIT 2 INSPECTIONS (90% COMPLETE) 5,000 MANHOURS FOR INVESTIGATIVE ACTIVITIES SPECIAL INSPECTIONS SPECIAL INVESTIGATIVE INSPECTION LATE 1979 (LED TO STOP WORK ORDER 1980)
REGION I MOBILE NON-DESTRUCTT.VE EXAMINATION TEAM INSPECTION 1984 AND 1986 CONSTRUCTION APPRAISAL TEAM (CAT) INSPECTION IN 1985 l
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OPERATIONAL READINESS INSPECTIONS ROUTINE INSPECTION PROGRAM JUNE 1987 TEAM INSPECTION JANUARY 1988 TEAM INSPECTION AUGMENTED INSPECTION (24-HOUR COVERAGE DURING FUEL LOAD AND CRITICALITY, ADDITIONAL RESIDENT INSPECTOR COVERAGE DURING START-UP TESTING)
RESULTS STRONG OVERALL OPERATIONAL PROGRAMS SOME WEAKNESSES WERE IDENTIFIED IN THE IMPLEMENTATION OF OPERATIONAL PROGRAMS HARDWARE PROBLEMS, AFW CCW PERSONNEL ERRORS (CIVIL PENALTY FOR INADE00 ATE CONTROL OF SAFETY SYSTEM STATUS)
RECENT OPERATOR PERFORMANCE REFLECTS INCREASED EMPHASIS ON CONTROL 0F SYSTEM STATUS.
SECURITY PROGRAM INITIALLY IDENTIFIED AS WEAK RES'JLTING IN A DELAY IN THE
. ISSUANCE OF THE LOW POWER LICENSE. THE SECURITY PROGRAM HAS BEEN SUBSTANTIALLY UPGRADED AND IS NOW ACCEPTABLE.
CONCLUSIONS IDENTIFIED HARDWARE PROBLEMS HAVE BEEN f
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OPERATOR PERFORMANCE HAS IMPROVED SUBSTANTIALLY.
SECURITY PROBLEMS HAVE BEEN RESOLVED.
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THE OPERATING LICENSE MAJOR LICENSE CONDITION FOR LOW POWER OPERATION Wa3 ON PHYSICAL SECURITY, THE ISSUE HAS BEEN RESOLVED, EXEMPTIONS GRANTED IN FOLLOWING AREAS (A) CONTAINMENT AIR LOCK LEAK TESTING (10 CFR 50, APPENDIX J) PROVIDES RELIEF FOR THE TESTING 0F CONTAINMENT AIR LOCKS AT TIMES WHEN CONTAINMENT INTEGRITY IS NOT REQUIRED, (B) SCHEDULAR EXEMPTION ON APPLICATION OF GDC-57 RELATED TO THE COMPONENT COOLING WATER SYSTEM RETURN LINE FROM FAN COOLERS, (C) CRITICALITY ALARM SYSTEM (10 CFR 70,24)
THISEXEMPTIONC0(TINUESTHATWHICHWAS PREVIOUSLY GRANTED PURSUANT TO 10 CFR 70.24.
PROVIDES RELIEF FOR THE INSPECTION AND STORAGE OF UNIRRADIATED FUEL ASSEMBLIES, (D) SCHEDULAR EXEMPTION REGARDING SUBMITTAL OF
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PRE-CRITICALITY OPERATIONS MAJOR COMPONENT RELATED CONCERNS ADDRESSED DURING PRE-CRITICALITY PERIOD WERE (A) COMPONENT COOLING WATER (CCW) HEAT EXCHANGER TUBE DAMAGE (B) AUXILIARY FEEDWATER (AFW) PIPING SYSTEMS (C) IN-CORE It)STRUMENTATION THIMBLE TUBES CCW TUBES REPAIRED TO CORRECT EXCESSIVE FLOW INDUCED VIBRATION, TUBES STIFFENED AND PLUGGED PIPING AND VALVES REPAIPED IN AFW SYSTEM TO S0LVE WATER HAMMER PROBLEMS, TESTING PERFORMED TO CONFIRM RESOLUTION, EDDY CURRENT TESTS SHOW SATISFACTORY PERFORMANCE OF THIhr'_E TUBES, TESTS WILL BE PERFORMED AFTER 12 WEEKS OF OPERATION FOR CONFIRMATION, ISOLATION VALVES AND LEAK DETECTION WILL BE INSTALLED DURING FIRST REFUELING OUTAGE,
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REVIEW 0F ALLEGATIONS FROM THE GOVERNMENT ACCOUNTABILITY PROJECT (GAP)
A SAFETY SIGNIFICANCE ASSESSMENT TEAM ADDRESSED ALL ISSUES INVOLVED IN ALLEGATION INFORMATION FROM GAP, RESULTS OF THE SCREENING AND REVIEW PROCESS TOTAL NUMBER OF ALLEGATIONS FROM GAP 700 ALLEGATIONS SCREENED FOR FOLLOWUP 213 ALLEGATIONS SELECTED FOR INSPECTION 71 (A) SUBSTANTIATED BUT PROBLEM CORRECTED 21 (B) UNSUBSTANTIATED 50 DUPLICATED AND RELATED ALLEGATIONS 119 LACKING SPECIFICITY BUT 23 ENVELOPED BY QA/0C REVIEW 213 CONCLUSION (A) ALLEGATIONS DO NOT SHOW ANY SAFETY SIGNIFICANT PROBLEMS AT SOUTH TEXAS, UNIT 1 WHICH WOULD AFFECT SAFE OPERATIONS (B) ALTHOUGH SOME OF THE ALLEGATIONS WERE SUBSTANTIATED, THE LICENSEE'S QUALITY ASSURANCE AND CONTROL PROGRAMS HAVE DEMONSTRATED THE CAPABILITY TO CAPTURE THE ISSUES AND IMPLEMENT CORRECTIVE ACTIONS, (C) ANY INFORMATION FROM ON-G0ING INVESTIGATIONS WILL BE F0LLOWED-UP FURTHER AS NEEDED.
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STAFF CONCLUSION THE STAFF SUPPORTS ISSUANCE OF A FULL POWER LICENSE TO THE SOUTH TEXAS PROJECT, UNIT 1.
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