ML18354A652

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Health Physics Issues, Steam Generator Replacement Project Agenda
ML18354A652
Person / Time
Site: Palisades Entergy icon.png
Issue date: 05/02/1990
From:
Consumers Power Co
To:
Office of Nuclear Reactor Regulation
References
Download: ML18354A652 (140)
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Text

c A.,--. 2-PALISADES NUCLEAR PLANT HEALTH PHYSICS ISSUES STEAM GENERATOR REPLACEMENT PROJECT AGENDA MAY 2, 1990 I. INTRODUCTION II. RADIATION SAFETY DEPARTMENT ORGANIZATION III

  • RADIATION PROTECTION PROGRAM A. Program Parameters B. Operational Health Physics
c. ALARA D. Traininq E. Radioactive Waste F. Decontamination IV. CONTAINMENT OPENING - HVAC V. OLD S.G. REMOVAL, HANDLING, AND TRANSPORT VI. OLD S.G. STORAGE VII. SELF ASSESSMENT VII~ DRY FOEL STORAGE

04390 SGRPOUTAGE RADIOLOGICAL SERVICES ORGANIZATIONAL CHART *

....__ ____.~ - - - - - ~R~~ - - - - - 4.___ _ .....i RADIOLOGICAL SERVICES PROJECT RADIATION MANAGER PROTECTION MANAGER PL.~NT TRAINING PROJECT I ALARA

~---i---CJ ALARA COORDINATOR ALARA COORDINATOR I

ENGINEERING PLANT PROJECT

  • 0- RAnloLoGrc'AL "MATERIAi.ScONiiOi.

AD:MINIS1RATOR 0

AUX CL I SIG~ .

CTMTCL CAFCL

PALISADES STEAM GENERATOR REPLACEMENT PROJECT ORGANIZATION PROJECT MANAGER D W JOOS ASST PROJ MGR JO~IS*

..------------..------------+------------,*************************************************************

ROJECT ADNIN/CONTROL RAD PROTECTION UCENSING ENGR AND CONSTR QUAUTY ASSURANCE M C SNIEGOWSIU M L LESINSKI

  • J L KUENIN ** W CIARK ** K E MARBAUGH **

COST Al.ARA ENGINEER UCENSING ENGINEER QA ENGINEER C LARNER** K BARR* S SCHOWENWEISNER

  • P PAPAIOANNOU RC HIRZEL
  • SCHEDULE RADWASTE ENGINEER MECH ENGR QA ENGINEER M DAVIS* M CERNY* T NcELROY
  • II L HIRZEL
  • SCHEDULE TECH 'IBAINING ENGINEER CIVIL ENGR QA ENGINEER F DeBOURBON
  • D ELDRIDGE* K CHAO** II R SMITH*

RECORDSIADlllH RP OPERATIONS ENGINEER QA ENGINEER P LUNDELL* D DINGER* G DAVIS** JD HESS*

SECRETARY SIU: COORDINATOR ENGINEER QA ENGINEER J VANDENBERG

  • JS RIDLEY C JOHNSON** J E WERNER**

OFFICE CLERK Sl'lll COORDINATOR ENGINEER SENIOR OFFICE CLERK J WESNER* K SCHNEIDER H MORGAN* DJ HOFFMAN

'11lAINING D MORGAN*

'l1lAININO P RIG<rZZI

~

  • CONTRACT PERSONNEL

.. PERSONNEL ON LOAN 'Yl/90

  • SHIFTLY COMMUNICATION AND INFORMATION FOR CONSTRUCTION AND RSD
  • PERFORM ALARA COORDINATION MEETINGS FOR UNIQUE WORK EVOLUTIONS
  • BPCo CRAFT ALARA ORIENTATION
  • INITIAL VvORK PACKAGE INPUT AND REVIEW
  • ENSURE SEQUENCE OF EVENTS INCLUDED IN WORK PACKAGES
  • PROVIDE INPUT FOR MAN-REM ESTIMATES AND RWP GENERATION
  • e===::;=~=:":::::::::==:a;::::iENGikEERING J:OR SPRING OUTAGE *
  • I  ! . IENGINE~RING FOlf FALL OUJAGE 1 :IREPLAC~MENT I *
  • I S/li MODIFICATION HO~K  : *

- - - - - - - - - - - - - - , O L D SIG . INTERIM STORAGE BLDG CO'.NSTRUCTIQN r-___._ _ _ _...,S(CURITY Bl.DG MODincATION~

.___ ___.!RETAINING :HALL CONSTRUCTION

lCONTAINMENT ACCESS FACILIJY CONSTQCTION *

.______.ISPRlNG OUTAGE (S/G REPLACEMENT PREP HPRK)

===::=====:::====~AUL ROAD. CONSTRUCTION tSTART F~LL (S/G hEPLACEMtNT) OUT~GE tF.UEL OFFLbAO COMPl.ETE tPCS SYST£M RELEA~EO TD CONTRACTOR:

t~UTTING CONTAINM(NT OPENI~G COMPL~TE

  • CJRIG:OLD S/G:s OUT oF:coNTAIN~ENT

.. .RIG NEM SIG'S IN10 CONTAiNMENT Cl.

0

  • RIG. FITUP. HELO f! NOE PCS. ELBOWS -'- - -

INSTALL LINER ~L. PLACE.CONCRET( & INSTAJ_L TENDON I , I PCS WORK COMPLETE t RELEASED t

  • CORE R£LOAD COfl!PLETE O

.. PERFORk ILRT/C~TMT SIT .c:J REACTOR CRif ICAL o

.

  • PLANT ON LINE t .

.. PALIS DES STEAM GENERATOR REPLACEMENT.PROJECT

. . __ _ _ _ _ _ _ _ _ _ _..___ _ _ _ _ _ _ _ ___.__ __..._ _ _ _ _ _ _ _...:....,_ _ _'"'"3.11t i ef I

t REPLACEMENT STEAM GENERATOR IMPROVEMENTS

  • BETTER SLOWDOWN (minimize future sludge lancing)
  • BETTER TUBE SUPPORTS (minimize denting)

-Horizontal Grid - Egg Crate

-Vertical Grid

-Batwing Strips

  • HANDHOLES

-4, 6 n on lower and intermediate shells for inspecti'ons

  • INSPECTION PORTS
  • -2, 2" above tubesheet secondary face
  • RECIRCULATION AND CHEMICAL CLEANING ~

NOZZLE

-For recirculation of secondary water

-For circulation of chemical cleaning fluid

  • BIGGER MANWAYS

-All 18" inside diameter

  • SURFACE PRETREATMENT

STEAM GENERATOR REPLACEMENT PROJECT RADIATION PROTECTION PROGRAM

STANDARDS

  • FOLLOW GUIDELINES IN NRC REGULATORY GUIDES 8.8 AND 8.10
  • FOLLOW GUIDANCE PROVIDED IN:

-CPCo Radiation .Safety Plan

,,..... o Palisades Plant Health Physics procedures

{

  • -Project Plan o Project Radiation Safety Plan o Project specific procedures and plans

MANAGEMENT GUIDELINES FOR

  • PROGRAM DEVELOPMENT
  • MINIMIZE 11\.fPACT ON PLANT MANPOWER AND FACILITIES
  • MINIMIZE CHANGES TO THE EXISTING PROGRAMS
  • MAXIMIZE COMMUNICATION AND INTEGRATION OF PROJECT, PLANT AND REPAIR CONTRACTOR
  • *UTILIZE LESSONS LEARNED FROM PLANT OPERATIONS, PAST SGR PROJECTS, AND PAST NRC CONCERNS

~

  • PROVIDE AS A MINIMUM, STANDARD PALISADES RADIOLOGICAL PROTECTION SERVICES

GOALS

  • l\1INIMIZE RADIATION EXPOSURE TO WORKERS AND THE PUBLIC
  • MINIMIZE PERSONNEL CONTAMINATIONS
  • MINIMIZE SPREAD OF CONTAMINATION
  • MINIMIZE GENERATION OF RADIOACTIVE WASTE
  • MINIMIZE SCHEDULE IMPACT DUE TO RADIOLOGICAL CONCERNS
  • MAXl1\1IZE POSITIVE LONG TERM EFFECTS ON PLANT AND PROGRAMS ,
  • MEEllNGS/INTERFACE
  • RSD PLANT AND PROJECT

-Weekly RSD Staff

-Daily Shift Turnover

-Monthly/Weekly Project ALARA Committee

-Monthly/Bimonthly SGRP Planning

-Weekly Pre-Outage Readiness

-Monthly Plant ALARA Committee

  • BECHTEL/SGRP
  • -Plan of the Day - prior to each shift

-Weekly Schedule - 4 week look ahead

-Weekly Action Item

-Monthly Project Status

  • PLANT/SGRP

-Plant Status - each morning or shift

-Daily Schedule . . each afternoon

" -Outage Management - weekly

SGRP LESSONS LEARNED

  • MOCK-UP TRAINING

-Mock-up on more job evolutions

-More aggressive mock-up needed

  • CLEANLINESS

-Must be stringently maintained

-Internal piping, cavity, work areas, etc.

-Cleanliness training required

  • RADIOGRAPHY

-Radiography plan drafted for control

-Communication between RSD and radiographer

  • COMMUNICATIONS

-Wireless headsets

-Closed circuit television . ,,

-Portable radios

  • DEDICATED TECHNICIAN COVERAGE

" -Workers report to Crewleader prior to entry

-Coverage technicians know when workers entering area

-Dedicated technician familiar with area work

-Maximizes coverage efficiency and consistency

COOK VS PALISADES

  • *DUAL UNIT SITE *SINGLE UNIT SITE
  • PROCEDURE *NO PROCEDURE REWRITE REWRITE
  • ONSITE NVLAP *ONSITE NVLAP ACCREDITATION DOSIMETRY JN-PROCESS AVAILABLE *
  • RADWASTE *RADWASTE HANDLING FACILITIES NEEDED FACILITIES ADEQUATE
  • *RECENT SWITCH TO OFFSITE
  • OFFSITE LAUNDRY ALREADY IN USE LAUNDRY .*
  • 0. AH

. f

~

SGRP COMPARISON OF PEAK RADIATION SAFETY STAFFING Point HB DC Palisades*

Beach Robinson Cook Contractor House Health Physics Foreman &Leads

  • Seniors Juniors &Access 6

32 32 3

70 33 10 53 41 99 24

[f_

Control Totals 70' 106 . 104 138**

(103)

Dosimetry Technicians 15 4 3 Clerks 36 2 8 Totals 36 17 15**

(11)

Dec on Foremen 4 2 Technicians 52 35 60 Totals 56 37 60**

(45)

  • Projected Numbers-
    • At peak staffing, 75% will be dedicated to SGRP (#)

I

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0 c~

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l'CMl-11 MISOUT

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1 *
  • SGRP COMPARISONS HP PORTABLE SURVEY INSTRUMENTS Point DC Beach Cook Palisades*

Dose Rate Instruments R0-2 0 23 25 R0-2A 10 15 12 Teletector 6 10 20 Gamma Survey Instruments 8 10 (15)

Total 24 58 57 (15)

Air Samplers High-Vol Grab Samplers 7 15 15 Lo-Vol Continuous Monitors 12 17 12 Total ... 19 32 27

  • Will be used for SGRP and balance of Plant (emergency use instruments only)

I I

SGRP c*oMPARISONS HEALTH PHYSICS INSTRUMENTATION I '*

Point DC I

Beach Cook Pa 1i sades Contamination Monitors PCM-18 0 5 4 Portable Friskers 20 30 49*

Count Room Instruments Gros~ B-G Counter 3 3 2 Gross 12 Counter 0 0 2 Alpha Scintillator 3 1 2*

Gamma Spectrograph 1 1 2*

Area Radiation Monitors Remote Monitors 1 4* 4

  • Will be used for SG"RP and Balance of Plant

SGRP COMMUNICATIONS

  • *WIRELESS HEADSETS

-Radiation Safety Technician use

-Reliable communication within containment oCrewleader to job cov~rage technicians oBetween dedicated technicians

-Inside to outside containment communication oAccess control to Crewleader oCount room to job coverage technicians

  • CLOSED CffiCUIT TELEVISION (CCTV)

-ALARA tool

-Aids in continuous coverage of high dose jobs*

-Aids in monitoring long term jobs oAutomatic cutting oAutomatic welding

  • HAND HELD RADIOS

-Communication between BPCo and RSD

, -Necessary for multi:msource radiography

ELECTRONIC DOSI ETRY /

WITH COMPUTER INT RFACE

  • WHAT IS IT?

-Secondary dosimeter " .

-LED displays accumulated dose and dose rate

-Accumulated dose and dose rate alarms

  • WHAT DOES IT DO?

-Automatically rezeroes

-Sets dose alarm from computer margins or defa ult setting

-Sets dose rate alarm from RWP or default setting

-Instantly updates MIS computer for personnel dose on entry

-Stores total accumulated dose and highest dose -rate seen

  • HOW DOES IT WORK?

-Worker inserts dosimeter into reader . ,.

-Enters SS no. and RWP no. "

  • WHY USE ELECTRONIC DOSIMETRY?

"-Alarming capabilities

-More easily read than pocket ion chambers

-Instant ~omputer updating aids dose tracking and personnel dose reporting *

-Minimizes dosimeter discrepancies

AIRBORNE CONTR.OL

  • *DECONTAMINATION

-Initial Containment

-On-going

-Tool(Equipment

  • CONTAINMENTS

-Pipe Cutting

-Pipe End Decon

-Fi ltr ati on/Venti Iati on

  • RESPIRATOR

-Fit Test

-MPC Tracking

  • AIR SAMPLING

-CAM

-Grab

MAN-REM ESTIMATE METHOD

  • *CONSTRUCTION MAN-HOURS
  • CONSTRUCTION. WORK LOCATIONS
  • RADIATION SURVEY DATA FOR LOCATIONS
  • WEIGHTING FOR OCCUPANCY IN

-Low Dose

-General Area Dose

-High Dose For Each Task

  • *WEIGHTING FOR RCA EFFICIENCY

-Dress* In/Out

-Respirator

-Special Dosimetry .

-Tool Checkout

  • PLANT HISTORIC DATA
  • ESTIMATE

SGRP MAN-REM ESTIMATE CONSTRUCTION SCOPE: 573.7 CPCo SCOPE: 125.5 TOTAL PROJECT: 699.2

SGRP MAN-REM ESTIMATE REVISION 1 (4/19/90) ill.k. Man-Rem

1. Health Physics/Decon 109
2. Plant Support 16
3. Construction Opening 5
4. Rigging and Supports 86
5. S/G Modifications .. 12
6. PCS Piping 171
7. Insulation 48
8. New Pipe Systems (BD/Recirc) 41
9. Secondary Piping 10
  • 10. Old S/G Storag~ Facility 1
11. Instrument Sample System 1
12. HVAC 8
13. Scaffold and Tents 81
14. Temporary Services 17
15. Project Support (Tours, Inspections, etc.) 58
16. Testing &Inspection (NOE) 29 11: Prep Outage 1989 13

STEAM GENERATOR REPLACEMENT DOSE

SUMMARY

PLANT .s.G TOT AL DOSE CBEM)

SURBY-2 3 2141 SURRY-1 3 1758 TURKEY POINT-3 3 2151 TURKEY POINT~4

  • 3 1305

~*J-.

, 8~

rQINT BEACH-1 2 576

'H 8 ROBINSON-2 3 1206

(:f NDIAN POINT-3 4 541 DC COOK-2 4 561 .

~

PALISADES 2 699 (ESTIMATED) a

  • TECHNIQUES TO SAVE DOSE
  • REDUCE FROM 6 CUT TO 5 CUT METHOD
  • PERFORM LOOP CUTS ~VITHOUT REMOVING MANWAYS
  • REMOVE ALL PRIMARY COOLANT SEAL FLUSH FILTERS
  • PERFORM CUT PIPE END INTERNAL DECON
  • CCTV
  • SURROGATE TOUR
  • MOCK-UP TRAINING
  • RSD HEAD SET COMMUNICATIONS SYSTEM
  • )~
  • WP&IR

.;..JI;<,

ALARA REVIEW PROCESS

-Bechtel ALARA review

-SGRP ALARA review

  • FACILITY CHANGE PACKAGE

-CPCo design review

-ALARA checklist

-CPCo ALARA approval

  • RWP

-CPCo RWP ALARA review

-CPCo ALARA approval

  • PRE-JOB BRIEFING ...

-Lead technician or crewleader

-Duty HP, RWP technician or ALARA ..

  • IN-PROGRESS AND POST-JOB REVIEWS

-ALARA (SGRP, CPCo)

  • LESSONS LEARNED

-ALARA

PROJECT SOURCE TERM REDUCTION DECEMBER '89 SOURCE IDENTIFICATION/

PRIORITIZATION (34)

JANUARY '90 ACTION PLAN TO IMPLEMENT BEST OPTIONS FEBRUARY '90 SGRP COST/BENEFIT ANALYSIS ON SHARED CHEMICAL DECON OF LETDOWN, REGEN Hx, LETDOWN Hx LOOP MARCH '90 SGRP COST/BENEFIT ON CUT/REMOVE OF FIVE SOURCES, THREE QUALIFIED APRIL '90 WALKDOWNS TO EVALUAT*E UPGRADED SHIELDING FOR SOURCES NOT QUALIFIED FOR REMOVAL MAY '90 BECHTEL COST/BENEFIT ~OF THE

. THREE LINES IDENTIFIED 'f3Y SGRP

PIPE END DECONTAMINATION

  • MECHANICAL DECONTAMINATION I

-Grit blast at a 45° angle

-Glass bead for smoothing  :

-Vacuum and pressure equilization

-Closed circuit TV

-No damage to base material

  • USED SUCCESSFULLY AT:

-IP-3 SGRP

-Muhleberg

-Obrigheim

  • WHEN COMBINED WITH SHIELDING, AVERAGE DOSE REDUCTION FACTOR OF - 20
  • ESTIMATED WASTE (if 6 cut method)

-6.6 cf coborundum (grit)

-3.6 cf glass beads ,.

-6 small dust cans

-3 RBU filters (1 cl)

  • NO l\flXED WASTE
  • DOSES FROM 5000 mRem/hr TO 250 mRem/hr
  • PIPE END MACHINING PERFORMED WITHOUT RESPIRATORS
  • PCS PIPE END DECONTAMINATION EQUIPMENT PRESSURE PIPE .

SUCTION PIPE PRESSURE DECON GAGE I MANIPULATOR

  • CLAMPING DEVICE

. POSITION OF SEAL DISC SPECIMENS DURING TEST

ALUMINUM OXIDE GRIT BLASTING PROCESS EQUIPMENT

  • RECIRCULATING BLAST UNIT
  • MANIPULATOR
  • FRONT BOX
  • SEAL DISC
  • ALUMINUM OXIDE/GLASS BEADS
  • CCTV ., -*

PRIMARY SYSTEM CHEMICAL DECON

  • J'NDEPENDENT STUDY
  • ESTIMATED COST: $1,650,000.00
  • ESTIMATED MAN-REM COST: 30 MAN-REM
  • ESTIMATED MAN-REM SAVINGS: 25 MAN-REM
  • SCHEDULE REQUIREMENT: 3-5 CRITICAL PATH DAYS
  • ADDITIONAL CONSIDERATIONS

-PCS Dam Installation

-Core Support Barrel Removal

-Disruption of Missie Shield Logistics

-Loss of Lay Down Areas

-Manways Will Remain On (No Jumps)

-Low External Dose Contribution

  • RESULTS

-Negative Cost/Benefit

" -Negative Schedule Impact

-Negative Logisti.cs

MINIMIZING CHANNEL* HEAD

  • RADIATION FIELDS
  • INDEPENDENT INDUSTRY SURVEY
  • AVERAGE. PLANT DOSE RATES:

13 R/hr TUBESHEET 10 R/hr GENERAL AREA

  • FACTORS FOUND TO MITIGATE RAD FIELDS:

MATERIAL I'

-LOW COBALT CONTENT

-TUBES BRIGHT ANNEALE SURFACE

-REDUCED ROUGHNESS

-REDUCED PLATEOUT

-REDUCED RAD LEVELS CHEMISTRY

-pH 7.1 -

-LITHIUM 2.2 ppm (MAX)

-DISSOLVED 0 2 <5ppb

  • -HYDROGEN PEROXIDE INJECTION

SIG SURFACE ENHAN.CEMENT

  • OBJECTIVE: PROVIDE A UNIFORM MICROSMOOTH SURFACE
  • MECHANICALLY CLEAN AND SMOOTH SURFACE

-Brush to remove scale and debris

-Flapper wheel and buff to a smoothness of 40 RMS

  • ELECTROCHEMICALLY POLISH TO REMOVE MICRO ROUGHNESS

-Conf arming cathode

-Standard electrolyte and technique

-Rinsing with demin water

-Final smoothness featureless at 1OOX scanning electron microscope

  • GENERAL EMPLOYEE TRAINING (GET)

-INPO 87-008 "Guidelines for GET"

-GET updated as necessary for SGRP

  • PROJECT ORIENTATION (GET UPDATE)

-SG RP workers currently on-site

-Update on Project specifics of acilities oplans and procedures

  • CONTRACT TECHNICIANS

-INPO 87-008, "Guidelines for RPT Training"

-Entrance exam for incoming knowledge and skills

-Procedure training and exam

-OJT

-Continuing Training

SGRP TRAINING (CONTINUED)

-BPCo supervision

-Motivational ALARA techniques

-Points out ALARA responsibilities

-Shows causes of unnecessary exposure

-Familiarization with RP paperwork

  • MOCK-UP TRAINING

-Required prior to RWP sign-in

-Pipe-end decon

-Machining

-Welding

-Channel head jumps as necessary

, r

DECONTAMINATION

  • *INITIAL CONTAINMENT DECON

-Allows access

-Reduces respiratory requirements

-Reduces personnel contaminations

  • GENERAL AREA DECON

-Maximizes co-nta.mination control

-Maximizes productivity

-Minimizes protective clothing requirements

-Minimizes use of respirators

. -Minimizes personnel contaminations

  • SPECJAL DECON REQUIREMENTS
  • -~*- * -Thermal shield

-Liner plate

-Steam generators

  • CONTRACTOR DECON SERVICES

-Tools and equipment

" -Respirators

-Protective clothing

RADIOACTIVE MATERIALS PROGRAM

  • *MINIMIZATION OF VOLUME GENERATED

-Prevention of material and equipment from becoming.

contaminated

-Pre-job planning, material lists

-Decontamination of materials and equipment

-Re-use of equipment which has been contaminated

  • MINIMIZATION OF VOLUME BURIED

-Segregation of reusable material which inadvertently ends up in the trash

-State of the art supercompactor

-Vendors available for special requirements

'I 0 ....

0 CUBIC FEET THOUSAND llJ 0

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00 0

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z :n < 0

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tw en l>

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-t -u m :n DO c....

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-I

SGRPs 35,000 , . . . - - - - - - - - - - - - - - - - - - - - - - .

30,000 25,000 t-w w

l..J._

20,000 u-OJ

J 15,000 u 10,000 10,000 5,000 POINT BEACH COOK PALISADES (ESTIMATE)

RADWASTE VOLUME BURIED

  • ~"' . *,;:-. __ ,.. ...... --
  • CONSTRUCTION OPENING
  • ORIGINAL CONTAINMENT CONTRUCTION UTILIZED AN OPENING
  • OTHER OPERATING FACILITIES EQUIP:MENT HATCHES OPEN TO THE ATMOSPHERE I I 2.~ *
  • SIZE AND LOCATION OF OPENING Z"it;
  • STEEL AND CONCRETE ..

-Survey and disposition

  • ENGINEERING CONTROLS

-Temporary enclosure

-HVAC I

\

-Local containments and ventilation \

-Grab samples

-CAMs

,-HEPA outlet

  • WALL REINSTALLATION
  • TESTING

REQUIREMENTS FOR OPENING

  • CONTAINMENT DOOR
  • HEALTH PHYSICS NOTIFICATION

-Crewleader stops or limits area jobs with airborne potential

-CAMs operability and source checked

-Grab sample taken prior to opening (not mandatory)

-Grab sampler loaded

-Inner vicinity floor smeared to ensure < lOK dpm/100cm2

  • FUEL HANDLING SUSPENDED
  • FUEL HANDLING BUILDING VENTILATION EXHAUST IN OPERATION
  • CONTAINMENT PURGE SUPPLY FANS TAGGED OFF
  • PERSONNEL AIR LOCK OPERABLE/DOOR NORMALLY CLOSED
  • WEATHER CONDITIONS FACTORED INTO DECISION TO PROCEED
  • f'

MITIGATION OF RELEASE FROM CONSTRUCTION OPENING

  • WHEN REQUIRED

-CAM alarm

-649' G/A air sample result > 25% MPC

  • ACTIONS REQUIRED

-Commence air sampling immediately

-Contain source if known

-Activate 12 removal units if 12 present

- -Verify HVAC operability

-Verify in-flow

-Close temporary door if possible (ctuantify release if not possible)

  • PRIOR TO NEXT OPENING

-Investigate cause

-Determine future preventive measures

  • . . . ...... ~,

STEAM GENERATOR DESCRIPTION

  • TWO UNITS
  • 462 TONS EACH
  • 60 FEET LONG
  • 20 FEET IN DIAMETER
  • *1718 CURIE CONTENT EACH
  • 40 mRem/Hr MAXIMUM SURFACE DOSE RATE ESTIMATE (DRY)

I

"

  • i I

f' . .

RIGGING AND TRANSPORT

  • RIGGING INSIDE CONTAINMENT
  • RETAINING WALL OUTSIDE CONTAINMENT
  • RIGGING OUTSIDE CONTAINMENT
  • HAUL ROUTES
  • EVENT ANALYSIS

OUTAGE BUILDING LEGEND

+ GROUM>Wt:ll AIR SN1PLING

  • STATIONS
  • ------::BLuE STAR MEMORIAL HIGHWAY

,A TLD STATIONS

- 6

EVENT ANALYSIS

  • *SCENARIO*

-SIG drop outside of containment

-Seal welded nozzle caps come off

  • ASSUMPTIONS

-Curie content 1718

-Bre~thing rate from Section C.2.(C) of Regulatory Guide 1~4

-10% of activity in steam generator is released and 1 %

of that r~leased goes airborne

  • Present design analysis drop scenario shows that n.a breach of SIG can occur and nn release of radioactivity will occur in case of an accidental drop

. ..----*-~:-.....-**¥-'!*."~

  • , *EVENT ANALYSIS (CONTINUED)
  • CALCULATED DOSE COMPARISON TO IP-3

(_i....JrJ~ ~

STEAM GENERATOR WHOLE BODY DOSE CRITICAL ORGAN DOSE DROP LOCATION PALISADES IP-3 PALISADES IP-3 CONTAINMENT 0. 10 mRem 0.3 mRem 30 mRem 118 mRem STORAGE FACILITY 0.58 mRem 2.3 mRem 153 mRem 1030 mRem

  • 10CFR100 GUIDELINE *

-300 REM TO THYROID OR CRITICAL ORGAN

- 25 REM TO WHOLE BODY NOTE: THE PRESENT DESIGN ANALYSIS DROP SCENARIO SHOWS THAT llil BREACH OF THE STEA~ GENERATOR CAN OCCUR AND llil RELEASE OF ACTIVITY WILL OCCUR IN THE CASE OF AN ACCIDENTAL DROP.

T~SFER FOR RECYCLING

  • *ADVANTAG*ES

-S/Gs would be immediately and ultimately disposed of

-Burial space would be minimized

  • DISADVANTAGES

-High exposl ire rate if not deconned

-Additional time, expense and man-rem if deconned

-Cost, time and man-rem required for shipment

-Many ship:rnents required

-M_any potential accident scenarios would need to be addressed ~ .*

-Potential objections or additional requirements by states traversed *

-Application of technology to this situation untested

    • r
  • *ADVANTAGES BARGE AND BURY

-S/Gs would be immediately and ultimately disposed of

-Future uncertain cost increases would be avoided DISADVANTAGES

-SIG surface exposure rates would be higher than if delayed

-There would be additional man-rem and expense over interim storage

-Potential problems associated with shielding and loading intact S/Gs -*

-Many potential accident scenarios would need to be addressed * . ""

-Site preparations and rigging/loading could negatively impact schedule

-Project schedule delays could* result in storage until spring

-Uncertainty in ability to bury outside of Michigan could.

drastically alter this approach *

  • *ADVANT AGES ON-SITE STORAGE

-No credible accident scenario

-Handling is simplified and time required for disposition is reduced *

-At the end of plant life, the radiological hazard will be greatly reduced (1/10 original in 24 mo. then Tl/2 is 5 .2 yrs)

-Future improvements in technology could be applied

~DISADVANTAGES

-This is an interim solution, final disposition will occur during decommissioning

-Uncertainty in future disposal costs

I

STEAM GENERATOR DISPOSAL

  • OPTION COMPARISON .

r

  • FATE OF OTHER REMOVED
  • SURRY (1 & 2) 1 SHIPPED FOR STUDY 5 ON-SITE STORAGE
  • H B ROBINSON 2 3 ON-SITE STORAGE
  • POINT BEACH 1 2 ON-SITE STORAGE
  • TURKEY POINT 3 & 4 6 ON-SITE STORAGE
  • INDIAN POINT 3 4 ON-SITE STORAGE ..
  • DC COOK2 4 ON-SITE STORAGE

COMPARISON OF STEAM GENERATOR STORAGE FACILITIES WALL ROOF EXTERNAL PLANT THICKNESS THICKNESS DOSE RATE PALISADES 2'-6" 1 -6" (MIN)

I <0.5 MR/HR INDIAN PT 3 3'-0" 1'-6" (MIN) <0.5 MR/HR DC COOK 2 2 -6 I H 2' -6" < 1.0MR/HR TURKEY PT 3 & 4 2'-0" 1 -0" I <2.5 MR/HR PT BEACH 1 2'-0" 2'-0" <2.5 MR/HR SURRY 1 & 2 3'-0" NOT <0.5 MR/HR

. AVAILABLE ROBINSON 2 2'-0" 2'-0" < 1.0MR/HR

DESIGN PARAMETERS OF PALISADES OLD STEAM GENERATORS INTERIM STORAGE FACILITY

  • LOCATION

-Approximately 2200ft northeast of the containment

  • DIMENSION

-Length 129' 4"

-Width 29' 0"

-Height 28' 9 1/4" (maximum)

-2

  • WALL TIIlCKNESS

-2' 6"

  • ROOF TIIlCKNESS

-1' 9" to 2' 1"

  • SURFACE RADIATION LEVEL

-0.S mR/hr on exterior

  • I
  • INTERIM STORAGE FACILITY (CONT)
  • OFFSITE BOUNDARY

-Van Buren State Park is the closest offsite boundary at 1200 ft north of the facility

  • NEAREST ON-SITE STRUCTURE:

-Outage Building at 275 ft away

  • LOCKED AND POSTED ACCESS DOOR
  • SURVEILLANCE PROGRAM RADIATION, CONTAMINATION
  • MAXIMUM ALLOW ABLE BUILDING WALL SURFACE DOSE RATE 0.5 mR/Hr
  • S/Gs COATED TO SEAL SURFACE.
  • SEALED BUILDING *
  • REMOTE SAMPLING PORTS

ISF OFF-SITE DOSE

  • ASSUMPTIONS

-200 mRem/hr SIG dry surface dose rate*

-Right cylinder 930.62" long, 155.5" diameter

-ISF 130' long, 30' high, 30' wide

-1200' to nearest fence (worst case)

-Tourist at fence 100% of the time

-Sky shine included

-Nearest residence 3000 ft, 100% occupancy

  • LIMITS *

-EPA 40CFR190.10(a) limit = 25 mRem/yr

-ISF dose to fence = 5.0 E-4 mRem/yr

-ISF dose to nearest resi~ent = 1.0 E-5 mRem/yr

  • Conservative compared to expected value of 40 mRem/hr

ENVIRONMENTAL SAMPLING PROGRAM

  • ONGOING

-PRESENT ENVIRONMENTAL MONITORING PROGRAM oDirect Radiation oAirborne oWaterborne-olngestion

  • IN ADDITION

-DURING S/G oDirect Radiation olngestion

-AFTER STORAGE -*

oDirect Radiation oWaterborne

Attachment 3

  • NRC/CPCo/BPC Meeting May 3, 1990 Palisades Plant Site Name Affiliation David W. Joos CPCo/VP Energy Supply Services/SGRP Mgr R.H. Beck Bechtel Mark Rubin NRR/NRC John A. Zwolinski NRR/ADP/DRSP Brian E. Holian NRR/PM-Palisades Bob Pierson NRR/PDIII-1/DRSP Keith Wichman NRR/DET/EMCB Chen P. Tan NRR/DET/ESGB Arnold Lee NRR/DET/EMEB P** K. Beckman Bechtel Kelly V. Cedarquist CPCo/iSI Tom Newton CPCo/ISI Mark Caruso NRC/NRR/SRXB Jake Wechselberger NRR Emmett Murphy NRR/DET/EMCB Winston W. Liu Reactor Inpsector NRC RIII Tom Tai Bechtel Mark L. Lesinsuf CPCo SGRP/RP Jim Kue:min CPCo SGRP/Licensing Wi 11 i am C1ark CPCo SGRP/Eng &Const Cris Hillrr.an CPCo Falisades/Prcj~cts J.G. Lewis CPCo/SGRP Herman M. Esch CPCo/Palisades/Planning David P. Hoffman CPCo/VP Nuclear Operation5 Ken Berry CPCo/Director Nuclear Licensing Bud Gerling CPCo/Pal/A&TA Supervisor

NRC PRESENTATION and TOUR DATE: MAY 3, 1990 LOCATION: MANAGERS CONFERENCE ROOM

SUBJECT:

SGRP, SG IMPROVEMENTS and SECONDARY SYSTEM IMPROVEMENTS AGENDA: 8:00 INTRODUCTION D V JOOS 8:15 VIDEO 8:30 PROJECT PLAN D V JOOS 9:00 SG & SECONDARY IMPROVEMENTS C T HILLMAN 10:00 SGRP OUTAGE SCHEDULE A K BECKMAN 11:30 LUNCH 12:00 SURROGATE TOUR ON LASER DISK J S RIDL!Y 1:00 PLANT TOUR J G LEVIS OUTSIDE CONTAINMENT TURBINE BLDG SFP INSIDE CONTAINMENT SG HAUL ROUTE ,*

SG INTERIM STORAGE NEY SGs "

4:30 CLOSEOUT D V JOOS

. t . *

~&l1D&lID[g@ ..

  • @1f(g&UMfl @~OO~lru&LF@OO OO~~l1&©~~[g001f ~OO@~~©if PALISADES s

G R

p*

PROJECT PLAN

1. INTRODUCTION
2. MISSION & GOALS
3. ORGANIZATION
4. SCOPE & RESPONSIBILITIES
5. PROJECT SCHEDULE
6. OUTAGE SCHEDULE

~

7. BUDGET

SGRP MISSION "TO ACCOMPLISH THE STEAM GENERATOR REPLACEMENT WITHIN BUDGET, ON OR AHEAD OF SCHEDULE, AND WITH HIGH QUALITY.

  • IN ADDITION, ALL PROJECT OBJECTIVES SHOULD BE ACCOMPLISHED SAFELY AND WITH RADIATION EXPOSURE AS LOW AS REASONABLY ACHIEVABLE."

SGRP PROJECT GOALS SAFETY

  • NO LOST-TIME ACCIDENTS
  • RADIATION EXPOSURE LESS THAN 679 MAN-REM e NO OVER-EXPOSURES
  • LESS THAN 215 CONTAMINATIONS
  • LESS THAN 10,000 CUBIC FEET RADWASTE FOR BURIAL SCHEDULE e 21 DAYS SPRING OUTAGE CRITICAL PATH 75 DAYS REPLACEMENT OUTAGE CRITICAL PATH COST
  • LESS THAN $103 MILLION COMPLIANCE
  • NO NRC CIVIL PENALTIES ..
  • LESS THAN 45 NRC NON-COMP~IANCE POINTS .
  • NO ENVIRONMENTAL VIOLATIONS
  • NO WORKER SAFETY VIOLATIONS QUALITY e COMPLIANCE WITH REQUIREMENTS
  • MINIMIZE REWORK .

PALIS}\DES STEAM GENERATOR REPLACEMENT PROJECT ORGANIZATION PROJECT MANAGER D 1' JOOS ASST PROJ MGR JG LEWIS

.----------...---------+--------"'---***oooooo*oOoHooo*oHooooooooooooooooooooooooooooooooooo*oo ROJ ADMIN/CONTRO RAD PROTECTION UCENSING ENGIR AND CONSTR QUALITY ASSURANCE M C SNIEGOWSKI M LESINSKI J KUEMIN W Cl.ARK K MARBAUGH RADIATION PROTECTION STRATEGY DEVELOPMENT ENGR AND CONSTRUCTION AUDIT AND PLANNING AND SCHEDULING FACILITIES AND SERVICES SURVEIWNCE PROGRAM SUBM11TAL PREPARATION QUALITY PROGRAM CONTRACTS SOURCE-TERM REDUCTION AND DEFENSE PROCUREMENT DEVELOPMENT AND LICENSING ADMINISTRATION DECONTAMINATION NRC COMMUNICATIONS TESTING AND INSPECTIONS RECORDS MANAGEMENT . RADlfASTE

PALISADES STEAM GENERATOR REPLACEMENT PROJECT

l. BECHTEL ORGANIZATION l

i

~

l

~

! PROJECT MANAGER

.j AK BECKMAN l

1 l ASST PROJECT MANAGER QUAUTY ASSURANCE ENC R L BECK P DADLANI PROJECT ENGINEERING FIELD SERVICES MANAGER BECHTEL-KWU COORD COST/SCHEDULE SUPV PROJ PROCUREMENT HGR C BROWN H CHARNEY C DIPPOLD H MUELLER H ZEIGER DESIGN ENGINEERING FIELD ENGINEERING PCS WELDING COST AND SCHEDUUNC PROCUREMENT UCENSING FIELD PROCUREMENT FIELD CONSTRUCTION FIELD COST/SCHEDUUNC FIELD Al.ARA FIELD SAFETY

.j FIELD QUAUTY CONTROL

!Vl/90

SGRP SCOPE & RESPONSIBILITIES

  • PROJECT MANAGEMENT
  • ENGINEERING AND CONSTRUCTION TESTING & INSPECTION FACILITIES
  • LICENSING
  • RADIATION PROTECTION
  • QUALITY ASSURACE/QUALllY CONTROL e SECURITY

SGrRP TOTAL PROJECT BUDGET ALL COSTS OOO's CONTRACTOR $54516 QA $1725 FACILITIES $2570 MAINT UPGRDS $2750 RAO PRO $9740 AFUDC $3959

. TESTING $4307 OWNER MGMT $7701 A & G $7337 CONTINGENCY $7352 Budget Rev: 2A Desk Reference 4.1.1 ih=========================-=-===-~--=-=--~=====================~~====--=-=*--==-======~

- operation and tube plugging history

- corrosion mechanisms

  • Current Problems and Remedies

- tube support plate growth

- denting and cracking

- IGA/SCC

  • Chemistry Performance

- sludge lancing

- chemistry with the Reverse Osmosis unit REPLACEMENT STEAM GENERATORS ,*

- stainless steel eggcrate supports

- recirculation ring increased blowdown line size

  • Secondary Side Improvements copper removal

- blowdown system enhancements

  • Future Plans

- Steam Generator Reliability Program

  • -- *---~-- -.****-******.----- .... ~* .. -**-.- ... *****--.----~,---*-**-,*-~*-**-*"'_____ Pasze ...":... _l_. ____ .,,... _*-..--****-**------------*-**--**-*- -*--- .

SG AND SECONDARY IMPROVEMENTS

  • EXISTING STEAM GENERATORS SG HISTORY CURRENT PROBLEMS AND REMEDIES CHEMISTRY PERFORMANCE
  • SECONDARY SIDE IMPROVEMENTS
  • ,, FUTURE PLANS

-*- ---------* .... **. **-**-*- -** -*--- ~-----.--. ... ' -*- -*- *---***** -.-* ***-----------:~* .... ***:*** ----- ............ *-** ,.. ... ***--*- .. .

- JAN 1973 FIRST TUBE FAILURE AFTER ONE YEAR OF OPERATION; WASTAGE ATIACK, PLUGGED FIRST 11 ROWS (1,400 TUBES; 8%)

- AUG 1973 EXCESSIVE LEAKAGE; PLUGGED ALL TUBES WITH GREATER THAN 60% WASTAGE DEFECTS (340 TUBES)

- MAY 1974 PLANT WAS STILL OFF LINE FOR RX VESSEL REPAIRS. FAILURE MECHANISM WAS IGA; SYSTEM FLUSHED AND WATER TREATMENT CHANGED TO ALL-VOLATILE TREATMENT (APPROXIMATELY 920 PLUGGED; 16% PLUGGED TOTAL) .

-1975 WASTAGE ESSENTIALLY ARRESTED; TO 1085 PLUGGED OVER 8 YEARS (ADDITIONAL 6%)

1982 DENTING WAS OCCURRING AT A MINOR RATE; TUBE SUPPORT PLATES BEING LOCKED UP

. MAR 1982 2 LEAKING TUBES IN A-SG; DEVELOPMENT- BEGUN ON A ECT PROBE CAPABLE OF TRAVERSING THE FULL LENGTH OF THE TUBES FOR BETTER DETECTION OF CIRCUMFERENTIAL CRACKS AND IGA
  • AU.G 1983 BEGAN OUTAGE WHICH WAS EXTENDED 11 MONTHS BY REQUIRED QUALIFICATION OF THE RECENTLY DEVELOPED 4C4F ECT PROBE. TESTING REVEALED A SUBSTANTIAL NUM.BER OF POSSIBLE IGA INDICATIONS (PLUGGED APPROXIMATELY 280 TUBES)
  • .... ****.- .. ***. - .. ****:*-.:~*- .. ****

OPERATING HISTORY* CONTINUED

- NOV 1985 A ROUTINE REFUELING OUTAGE WITH NO ABNORMAL SG INSPECTION RESULTS; DENTING CONTINUING

- DEC 1987 FIRST OUTAGE DUE TO SG LEAKS IN OVER 5 YEARS.

CIRCUMFERENTIAL CRACK AT 13TH SUPPORT PLATE OF B-SG; BORIC ACID ADDED TO SECONDARY !;;ICE TO HELP MITIGATE DENTING, PRECEDED BY SLUDGE LANCING

- AUG 1988 TUBE LEAK IN B-SG; CIRCUMFERENTIAL CRACKS AT 13TH SUPPORT PLATE; 34 TUBES PLUGGED

- DEC 1988 WELD DEFECT ON B-SG TUBE PLUG; PREVENTIVE PLUGGING OF 9 TUBES

- JAN 1989 CIRCUMFERENTIAL CRACK AT 3RD SUPPORT PLATE; PREVENTIVE PLUGGING OF 238 TUBES

- OCT 1989 ADDITIONAL 145 TUBES PLUGGED DUE TO CRACKING IN HIGH STRESS REGIONS

  • TOTAL TUBES PER SG 8519; PRESENTLY A-SG HAS 2044 TUBES PLUGGED (24%) AND B-SG HAS 2442 TUBES PLUGGED (29%)
      • =...~ ': ....-,......:.. ~* ..:...1,:'l'-.""';!"",..:.-.;.:*-i.*,.<":'~'.\.~~~=.~:-~.**.:r~*-<T>tu_:nY.l~.:~~~.r.;~:-.~---:":r_-.~~~J;'!'.R'*-..~7 ""~*.::=..:-..-ry-~,,.,...1.)a.v........ ~****.,.":"* .. ~::-*-*-. -  :- -** .. "** -:-;* * .* *: - .** .* . """: ** - .......... *- .......

"'"*~*-  :-~1"1*:-:*:1~4':

. . . . ~*-..

STEAM GENE.RATOR TUBE PLUGGING PLUGGED/YEAR 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 YEAR

- SGA - SGB SG FORCED OUTAGES:

73-1, 74-2, ~2-1, 87-1, 88-2, 89-1 CUMULATIVE. PERCENT 307.~*~~~~~~~~~~~~~~~~~~~----.

~ .

257.

20" 157.

10" 57.

  • o" 73 74 75 76 77 78 79 BO 81 62 83 84 65 86 87 88 89 YEAR

.-:.,. :.'..; *-*--":">:~~*~'\:--,.*~*-'C:-..... ':"'*"'-'*:c~~~-~~~"n.:*f..*:*...::.R'!'~r.;_.,rk-.\~~:lt'-'F~.*";C""~"°>\~~'l'.":~..:~1~?~";t~?"-:7~~*~*,::.o.~**,?-'l~}'h~u.. :-o~~...~.":...~~- ... - .*.*.-*-*****-..:".:~ .* - ........ ~-~:"'... "*:"'~ _:;::. ~; * **. :*-*. * :.. -*. **;. --* -**>* * .* :--*.:* _,. .--* -:*-: - .... -...~.*--* ~-*:**;:**.* --

EXISTING STEAM GENERATORS

  • CORROSION MECHANISMS WASTAGE DENTING IGA/s*cc -

e CURRENT PROBLEMS AND REMEDIES TUBE SUPPORT PLATE GROWTH DENTING AND CRACKING IGA/SCC

  • CHEMISTRY PERFORMANCE SLUDGE LANCING CHEMISTRY WITH THE REVERSE OSMOSIS UNIT

IMPROVEMENTS e STAINLESS STEEL EGGCRATE TUBE SUPPORTS

  • MINIMIZE FLOW STAGNATION .*
  • REDUCE POTENTIAL FOR DENTING
  • MINIMIZE STEAM BLANKETING e LARGER MANWAYS" e MODIFIED INSPECTION PORTS e INTEGRAL MAIN STEAM FLOW RESTRICTOR e IMPROVED SLOWDOWN CAPABILITY e ELECTROPOLISH PCS HEADS

~~~.r.;;-z-:!:.{~... -::-;.t;.:.-1'.'.":~~-~?;"~[...r.~.~f{\~*~*~:f!.'J.'o.~.';*:;:1,'.1.?~:*:7~.";~*:"';::;.:~*r-**.*~:.;;*.~*/--...*._<,":":... ~*-*1:.;.*7~';**.*:!" ~--. ;;, *..::*: :--..':***: ~:~-*'!".:*.. **** ~-,:.:_:* *;-

.:.: ,-.;*-~.~-: --~. _.-. . ~: _,. ~~.::*"'::;*.**'.!!' ....~:. ~;..,.,.*.--~* -::r:*- .,~. -~- :.. ** -.: ** *.-; ',&..._.- * * ~,.. *:*,_:... - ; . * . -.- *"":P'I<*:"'.*

SECONDARY SYSTEM IMPROVEMENTS

  • CORROSION PRODUCT REMOVAL ORGANIC REMOVAL SECONDARY WATER QUALITY WATER QUALITY INSTRUMENT UPGRADE,, **
  • PHASE II SLOWDOWN SYSTEM ENHANCEMENTS
I INCREASE SLOWDOWN AND RECIRC PIPE SIZE INCREASE CAPACITY OF SLOWDOWN HX LARGER FLOW SLOWNDOWN PUMPS

.. _,"":"'T*"-""~;"1:***~**.-.~-* -~"T"';'f"' *-.*-*;*~*-**- .. - -*-**--.*,--*** --~.-- ... * * * * * - * ** * * * ,_. " - - * * * - , - . * * - * * * * - -;-* - * - - * - ... __ * .._... * . **~- * * - .* **********. * **

  • FUTURE PLANS
  • STEAM GENERATOR RELi.ABiLiTY PROGRAM PROGRAMMATIC ASPECTS OPERATION ENHANCEMENTS MAINTENANCE ENHANCEMENTS

I

  • Pre-Outage SGR Activities
  • SGR Activities During Plant Defueling
  • 75 Day SGR Critical Path Activities
  • SGR Activities During Plant Refueling

.- .. *-* --*- - *- .... _.,,....~---.....--*--"- ...... -*.-*-* -----..---*-** *:* -* -..,....----**********-** **---*** .... ---- *-**-.-.--- --** ......-- ----~*-*-*:--****

I.All r Offll E fl!OLR!n!ll & DUVEL l!E!MjmR YE%£L PALISADES SGRP 1qqo FALL OUTAGE SCHEDULE pWuo=~~'~l"E~m........g~~~~=m~q~g~~~ra""""'~~"'~c~e~n~*tAl.---.;~~'="~~-----~-~~---(P

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  • I~ -
  • Mock-up Channel head & PCS Piping
  • PCS Cutting and Machining PCS Welding
  • PCS Decontamination PCS Nozzle/Elbow Fit-up
  • Training
  • Detailed Planning
  • Reinforced Earth Wall
  • Assemble Platform and Rigging Equipment Outside of Containment Opening

. *--.,****-* -- *- ****-* - -*-...,-**-.. ---* --* **--**-- _____ , ___ ------=--*--** ----- "::**'~-~ --~-*-*- ....... , - ... ****~ *-

SIEMENS SG-Mock Up Steam Generator Replacement Ringhals 2/Sweden Personnelt-, Equipment Training and OuaHficatioR

.. *- 89PWR124 UBKWU U444PT

122.53' !

FACE OF WALL ,,'

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3/4* JT. - 611.41

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50 X 4mm ELEVATION FRONT FACE SCALE

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__ OMPA~TED DUNE S~

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COMPACTED STRUCTURAL Fill DENSE 22*-o* 1o*-o*

CMJN. J SEE NOTE 5 SECTION@

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  • Prepare Concrete Surface
  • Machine Cut and Decon PCS Piping
  • Rig-Out Old S/Gs
  • Rig-In New S/Gs Remove S/G Rigging Equipment Template and Weld Prep PCS Piping Fit-Up and Weld PCS Piping
  • Install New Liner Plate
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  • Form and Place Concrete at Containment Opening
  • Install Tendons

"'

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  • Hydrotest S/G Secondary Side and Piping

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  • Install Removed Interferences
  • Install New S/G and Piping Insulation
  • Remove Temporary Power
  • Tension and Grease Tendons
  • Perform Containment SIT

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  • PRESENTATIONS CONTAINMENT CONSTRUCTION OPENING ********************** APRIL 12 NARROW-GAP WELDING ***********************************. APRIL 2 6 RA.DIATION PROTECTION **********************.*.********* MAY 2 SG and SECONDARY SIDE IMPROVEMENTS ***********..*.***.* MAY 3 PIPE and PIPE SUPPORTS. * * * * * * * * * * * * * * * * * * *
  • 8 * * * * *
  • FSAR ANALYSES. . . . . . . . . . ... . . . .. . . .. .. . . . . . .. . . . . . . . . . .

RIGGING AND HAULING *******************.********.******

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FCP DESCRIPTION SCHEDULE Blowdown System Piping - Phase I Completed Recirculation System Piping - Phase I Completed Wide Range Instrumentation Tubing - Phase I Completed Breathing Air Station Relocation - Phase I Completed Rigging and Support Installation - Phase I Completed Reinforced Earth Retaining Wall April 13 Aux Bldg Modification for CAF June 15 Overall SG Replacement Program June 15 Temporary Commodities June 15 Old Steam Generator Storage Facility May3 Outside Rigging June 15 Inside Rigging June 15 CCW Surge Tank Room Tubing Relocation June 15 CCW Surge Tank Room Roof Slab Removal June 15 Containment Construction Opening June 15 PCS Piping Replacement June 15 Main Steam System Piping Modification June 15 Emergency FW System Piping Modification June 1 Blowdown System Piping - Phase II June 15 Recirc System Piping - Phase II June 15 Steam Generator Sample System June 1 Wide Range Level Instrumentation June 15 Foundation Structure for Rigging Platform May21 CVCS Piping/Valve Relocation June 15 Steam Generator Replacement June 15 ,.

Main Feedwater System Modification May15 "

INTERIM OLD SG STORAGE FACILITY

  • 0 Structural l)esign of Storage Facility 0 Seismic Design Considerations 0 Other Natural Phenomena 0 Flooding 0 Fire Protection and Fire Hazards 0 Electrical Design Considerations 0 Radiological Impact (Onsite and Offsite Doses) 0 Radiological Consequences of Abnormal Events 0 Surveillance Requirements .,

0 Structural Adequacy of SG Supports 0 Security Access Controls 0 Construction Impact 0 Technical Specification Impact

CONTAINMENT *coNSTRUCTION OPENING 0 Containment Design Parameters 0 Containment Structural Adequacy 0 Shutdown Cooling System Operation Coordin.ation 0 Impact on Safety-Related Equipment during Construction 0 Temporary HVAC Consideration 0 Missile/Tornado and Depressurization Considerations 0 Containment Access Control and Security Control

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0 Replacement Materials (concrete, rebar, sheathing, liner plate) and Construction Details

" 0 Radiation Protection 0 Temporary Enclosure Consideration 0 Fuel Building/Containment Interface

CONTAJNMENT CONSTRUCTION OPENING (cont) 0 Liner Plate Protection Considerations-0 Protective Coating on Liner Plate 0 Procedural Controls 0 Waste Disposal 0 Removal and Reinstallation of Tendons 0 Mockup Training

  • 0 0

Inspection Method/Criteria Performance Tests 0 Technical Specification Impact _.

0 FSAR Impact

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RIGGING INSIDE CONTAINMENT 0 Structural Evaluation of Rigging Loads on Existing Polar Crane Rail, Containment Shell and Reactor Cavity Shield Walls 0 Heavy Load Consideration 0 Load Test of all Lifting Systems and Components 0 Impact on Plant Security System 0 Fire Protection System Considerations 0 Electrical Design Considerations 0 Procedural Controls

-o Consequences of Dropping Old/New "SG, Rigging, or Other Equipment 0 Radiation Protection

I 0 Technical Specification Impact 0 FSAR Impact I

HAUL ROUTES AND RIGGING OUTSIDE CONTAINMENT o Structural Evaluation of Access Roads o Evaluation of Underground Utilities o Assessment of Nearby and Overhead Facilities for Interferences 0 Load Test of all Lifting Systems and Components 0 Structural Evaluation of Rigging Platform, Structural Supports, and Foundation 0 Flood Control 0 Procedural Controls 0 Impact on Fire Protection 0 Impact on Plant Security System 0 Impact on Electrical *Systems

HAUL ROUTES AND RIGGING OUTSIDE CONTAINMENT

  • (cont) o Transportation Incidents (loss of transporter control, transporter overturning, etc.)

o Consequences of Dropping Old/New SG, Rigging, or Other Equipment o Technical Specification Impact o FSAR Impact

RETAINING WALL OUTSIDE CONTAINMENT o Structural Adequacy of the Structure*

o Evaluation of Underground Utilities .

o Assessment of Nearby and Overhead Facilities for Interferences o Procedural Controls o Construction Impact o Separation from Containment o Impact on Containment/Tendon System o Impact on Fire Protection o Impact on Plant Security System o Impact on Electrical Systems o Design Life of the Structure o Technical Specification Impact o FSAR Impact L

PIPING SYSTEMS INSIDE CONTAINMENT o . Seismic Design Considerations o Missile Design Considerations o Pipe Support Design Considerations o High-Low Pressure Interfaces o Interfacing LOCA o Pipe Penetrations (LLRT, Heatup, etc) o Pipe Breaks (MSLB, HELB, etc.)

o Single Failure Criteria o Environmental Qualification Impact ..

o Code Compliance and Reconciliation o Containment Heat Load Considerations o Containment Heat Sink Considerations o Thermal In~ulation Removal and Replacement

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  • PIPING SYSTEMS INSIDE CONTAINMENT (cont) 0 Heavy Load Considerations 0 Protective Coating 0 Hydrogen Generation 0 Pipe Severance an~ Reconnection Technique 0 Radiological Impact of Pipe Cutting 0 Waste Disposal 0 Return-to-Service Testing 0 Technical Specification Impact 0 FSAR Accident Analyses .I' 0 FSAR Impact

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  • SG BLOWDOWN AND RECIRCULATION PIPING -

SPRING OUTAGE INSTALLATION 0 Structural Evaluation of Pipe Support Loads (permanent and temporary) on .Containment Interior Structures 0 Seismic Design Considerations 0 Missile Design Considerations 0 Protective Coating 0 Impact on Subcompartment Analysis 0 Containment Heat Sink Considerations 0 Hydrogen Generation 0 Heavy Load Considerations ~

0 Technical Specification Impact

" 0 FSAR Accident Analyses 0 FSAR Impact

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WIDE RANGE LEVEL INSTRUMENTATION 0 Potential Changes to Setpoint 0 Review of FSAR Accident Analyses 0 Review of Set Point Index 0 Enyironmental Qualification Impact 0 Regulatory Guide 1.97 Compliance 0 Fire Protection Considerations 0 Single Failure Criteria 0 Electrical Power Supply Considerations 0 Structural Evaluation of Instrumentatjon Support Loads on Containment Interior Structures 0 Seismic Design Considerations 0 Technical Specifi~ation Impact 0 FSAR Impact

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WIDE RANGE LEVEL INSTRUMENTATION -

  • SPRING OUTAGE INSTALLATION 0 Structural Evaluation of Instrumentation Support Loads on Containment Interior Structures 0 Seismic Design Considerations 0 Impact on Subcompartment Analysis 0 Containment Heat Sink Considerations 0 Hydrogen Generation 0 Technical Specification Impact 0 FSAR Accident Analyses 0 FSAR Impact , "

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  • INTERFERENCE REMOVAL AND REINSTALLATION 0 Consequences of Load Drop 0 Laydown Load Consideration 0 Impact on Safety Systems During Removal/Reinstallation 0 Impact on Fire Protection System 0 Impact on Security System Loss of Offsite Power 0

0 Procedural Controls 0 Return -to-Service Testing 0 Technical Specification Impact 0 FSAR Accident Analyses

"' 0 FSAR Impact

TEMPORARY RIGGING COMPONENTS INSIDE CONTAINMENT - SPRING OUTAGE INSTALLATION o Structural Evaluation of Rigging Component Loads on Containment Dome Trusses and Liner Plate o Seismic Design Considerations o Impact on Subcompartment Analysis o Containment Heat Sink Considerations o Hydrogen Generation o Protective Coating o Heavy Load Considerations o Heavy Load Consideration Not Addressed in Existing Plant Procedures o Technical Specification Impact o FSAR Accident Analyses o FSAR Impa~t

  • BREATHING AIR SYSTEM - SPRING OUTAGE INSTALLATION 0 Structural Evaluation of Support Loads on Containment Interior Structures 0 Pipe Support Design Consideratio_ns 0 Seismic Design Considerations 0 System Interface 0 Performance Tests 0 Technical Specification Impact 0 FSAR Accident Analyses 0 FSAR Impact _,.

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  • STEAM GENERATOR REPLACEMENT FC 0 Comparison with Existing SG Design 0 Code Compliance and Reconciliation 0 Structural Adequacy of Existing SG Support System 0 Thermal Insulation Removal and Replacement 0 Missile Design Considerations 0 Seismic Design Considerations 0 Containment Heat Load Considerations 0 Containment Heat Sink Considerations

./'

0 Containment Net Free Volume Considerations 0 Procedural Controls

" 0 System Interface 0 Equipment Qualification Program Evaluation

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  • STEAM GENERATOR REPLACEMENT FC (cont) 0 PCS Flow 0 Flow-Induced Vibration 0 Temperature Difference between Hot and Cold Legs 0 Pressure Drop Across the Core 0 ALARA Considerations 0 Return-to-Service Testing 0 Technical Specification Impact 0 Evaluation of FSAR Accident Analyses

~

0 FSAR Impact

OVERALL SG REPLACEMENT PROJECT 0 Comparison with Existing SG Design 0 Code Compliance and Reconciliation 0 Structural Considerations 0 Missile Design Considerations 0 Seismic Design Considerations 0 Procedural Control During Construction 0 Operational Procedure Review 0 System Interface 0 Equipment Qualification Program Re~iew

~

0 PCS Flow 0 Flow-Induced Vibration 0 Temperature Difference between Hot and Cold Legs

  • OVERALL SG REPLACEMENT PROJECT (cont) 0 Pressure Drop Across the Core 0 ALARA Considerations 0 Return-to-Service Testing 0 Technical Specification Impact 0 FSAR Accident Analyses Review 0 FSAR Impact

.. 0

  • DISPOSITION OF ALL CHAPTER 14 EVENTS CCPCo, ANF, CE>
  • THE DISPOSITION IS BASED ON REPLACEMENT STEAH GENERATOR DESIGN DIFFERENCES AND RESULTING PLANT OPERATING CONDITIONS
  • ONLY TWO EVENTS ARE DISPOSITIONED AS REQUIRING REANALYSIS:
1. FSAR 14.15, STEAH GENERATOR TUBE RUPTURE CSGTR), DUE TO -

A LARGER TUBE INSIDE DIAMETER

2. FSAR 14.18.2, HAIN STEAH LINE BREAK CMSLB) CONTAINMENT RESPONSE (INCREASED SECONDARY INVENTORY)
  • PRELIMINARY RESULTS TO THE SGTR AND THE MSLB CONTAINMENT EVENTS ARE ACCEPTABLE (ACCEPTANCE CRITERIA BEING HET> - ..
  • THE ACCEPTABLE COHPLETION OF THE EVENTS REQUIRED WILL SUPPORT THE REPLACEMENT OF THE STEAH GENERATORS UNDER THE 10CFR50.59 P~OCESS
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