ML072841065

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September 2007 Evidentiary Hearing - Intervenors Exhibit 19, Amergen, Action Request: Determine the Proper Sealant for Drywell Sandbed Floor Voids
ML072841065
Person / Time
Site: Oyster Creek
Issue date: 10/25/2006
From: Tamburro P
- No Known Affiliation
To:
Office of Nuclear Reactor Regulation
SECY RAS
References
50-219-LR, AmerGen-Intervenor-19, RAS 14329
Download: ML072841065 (4)
v • d • e


Text

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a, DOCKETED USNRC Citizens Exhibits 19 U.S. NUCLEAR REGULATORY COMMISSIO Inuimmaw~of-Nmcfro" 6 CoxLt-'

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.9 4-AI,]3 OFFERED y 7j9S /'A139ý October 1,2007 (10:45am)

OFFICE OF SECRETARY RULEMAKINGS AND ADJUDICATIONS STAFF IDenlFIEiJ

      • ACTION REQUEST

'AIR TYPE

Clý ECR' REQUEST OR

.OED REQUEST DATE; 21OCT06 REQUESTED BY:. TAMBURRO

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AV~JtflfuruhIf*

WITHDRAWN U

A/R NUM1BER -A2152754 A/R STATUS :.

SIGND

'STATUS DATE:-23OCT06 LAST UPDATE: 25OCT06.

PRINT DATE :. 25CT06 m

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==

==

EVALUATION N`BR-01 OR EVALUAT.ING.ORG:

OED EVAL ASIGND TO.

TAMBURRO, PET&-P
  • EVAL-REQUEST ORG: OEDM EVAL REQUESTOR:
RAY, H

EVAL RETURNED BY: HUTCHINS, SP

.1G DATE EVAL DATE ASSIGNED; *_

DUE DATE:.23OCT06 ASSIGNED: 220CT06 EVAL STATUS.

R IMPORTANCE CODE:__

OEAP:'

SCHEDULE CODE:__

DATE FIXED:

EVAL. DESC: DETERMINE PROPER SEALANT FOR DW SANDBED FLOOR VOIDS

  • ,k*****,k**********************k*****
    • ,***~**,~****
    • ~

DF!TRRMINE/EVALUATE THE PROPER FILLER fSAL I

/E A

U T

TH PROPER FI LE p

TAN*O, 23OCT06' ETC) *AN0 23OCT06 v'NuwrT.m T1SE ON~ PwE~ x7 m/Ocu-nuo

-?wi mup'h,Y n

AS 'DESCRIhED IN IR/AR # 00546932.

TAN0 23OCT06 TAN0 23OCT06 "TAN0 23OCT06 THE SUBJEcT EVALUATION (QUESTION)

REQUIRES TECHNICAL PXTO 23OCT06 (DIRECTION, GUIDANCE,'

INTERPRETATION, 'EVALUATION)

TO BE PXT0 23OCT06 GIVEN TO THE REOUESTOR (MAINTENANCE).

AS SUCH, THE

.PXTO 23OCT06 RESPONSE WILL BE TREATED AS A TECHNICAL EVALUATION IAW

-PXT0 23OCT06 PRO2CEDURE'CC-AA-309-101.

XT0 23OCT06 PXTO 23OCT06, THE RESOLUTION OF THIS TECH EVAL WAS REVIEWED IN

'TAN0 23OCT06.

ACCORDANCE WITH HU-AA-1212. AND FOUND TO HAVE A RISK EXTO 230CT06 RANK 'OF 3. THEREFORE A-TIRD PARTY REVIEW BY AN PXTO 23OCT06.

INDUSTRY COATING EXPERT IS'REtCOMMENDED.

PXTQ 23OCT06.

PXTO 23OCT06 A.

REASON EVA UATION / SCOP'R-PXTO 23OCT06

,..PXT0,'230CT06"

'DURING VISUAL INSPECTIONS'OF THE.DRYWELL VESSEL PXTO 23OCT06 EXTERIOR COATING IN THE SANDBED REGIONS (BAYS 1,7,9.&15) 1AN0 23OCT06 "AREAS'WERE OBSERVED TO HAVE SEAMS/VOIDS-SPECIFICALLY, PXTO 230CT06 THE AREAS' WHERE THE EPOXY COATING REPAIRS WERE APPLIED PXTO 230CT06-TO THE ORIGINAL, CONCRETE FLOOR -OR THE SIDE OF THE" PXTO 230CT06 BIOSHIELD'HAVE SEPARATED IN SPOTS.

TO PREVENT WATER PXTO 23OCT06 FROM' SEEPING UNDER 'THE"EPOXY, AN EXPANDABLE FILLER

'..PXT0 23OCT06 MATERIAL IS REQUIRED FOR THE, SEAMS/VOIDS.

PXT0 230CTO6 PXTO 23OCT06 STHE SCOPE.OF THIS TECH EVAL IS-TO PROVIDE GUIDANCE ON PXTO 230CT06 FILLIN THE. SUBDJECT SEAMS/VOIDS.

PXTO 23OCT06I PXT0 23OCT06 B. DETAILED EVALUATION:

PXTO 23OCT06 PXTO 23OCT06

!N 1992. THE EPOXY COATING WAS APPLIED TO THE FLOOR IN PXT6 230CT06 AREAS WHERE IT'WAS UNEVEN,

,SO THAT ANY WATER ENTERING PXT-0 23OCT06 THE SANDBED WOULD FLOW AWAY FROM THE VESSEL AND' BE PXTO 23OCT06 ROUTED 'TO THE DRAINS'.-- SINCE" 996'.:-.'NSPECTINS HAVE PXTO..23OCT06 FOUND INDICATIONS Of"THE EPOXY SEPARATING FRON.THE PXTO 23OCT06, CONCRETE.

THIS SEPARATION COULD BE CAUSED BY THE PXTO 23OCT06 CONCRETE SWELLING (EXPANDING AND CONTRACTING)

OVER PXT0,230CT06 TIME.

PXTO 23OCT06 PXTO 23OCTO6' OCLRO0014655 I-lepla7Le= s-e-cY.-0,29 S16 c -19

      • ".ACTION RBQUESIJ A/R TY PE' CM ECR REQUEST ORG'.: OED' REQUEST'DATE:

21'OCT0.

REQUE5TED BY; TMBURRO PAGE.:

A/R, NUMBER t A2152754 A/R STATUS : ASIGND STATUS DATE; 23OCT06 TLAST UPDATEt 25OCT*6 PRINT DAT-,: 25QCT06 05 CONCRETE FLOOR IN OUESTION DOES 'NOT HAVE. A SAFETY RELATED TANO 23OCT06 FUNCTION.

THE FUNCTION OF THE FLOOR IS TO ROUTE WATER PXT0 23OCT06' THAT MAY'ENTER THE SANDBED TO THE FIVE EQUALLY SPACED:

PXT0 23OCT06' DRAIN LINES AND KEEP THE WATER AWAY FROM THE DRYWELL "PXTO 230CT06

VESSEL, TANO 230CT06-
  • "PXTO 230CT06 THE SEPARATED SEAMS -COULD POTENTIALLY ALLOW SOME WATER*

PXTo' 23OCT06

-, TO GET'UNDER THE EPOXY COATINQ REPAIR. PLEASE NOTE PXTO 23OCT06 INSPECTION OF THESE BAYS SHOWS NQ DEGRADATION DRYWELL PXTO 230CT0O6.

VESSEL COATING OR THE CAULKING BETWEEN THE VESSEL PXTO 23OCT06 COATING'AND THE FLOOR.

"SEPARATED SEAMS ARE LOCATED PXTO 23OCT06

  • AWAY FROM THE DRYWELL VESSEL AND ARE LOCATED NEAR PXTO '23OCT06

.CONCRETE.

BTO SHIELD.

PXT0 23OCT06 TANO 23OCTQ6 THE EPOXY THAT WAS USED IN THE EARLIER REPAIR IS DEVRON PXTO 23OCT06 1

284 EPOXY COATING-WITH A "PXTO 23OCT06 DEVOE. PREPRIME 167 SEALER,

. PXTO 23OCT06

.PXT0 23OCT06 BASED ON-TIE CONDITIONS. AND MATERIALS, THE TAN 23QCTG0*6 RECOMMENDED FILLER SEALANT TO USE IS SIKAFLEX PXT.

230CT0 6 TEXTURED SEALANT.

THIS PRODUCT IS RECOMMENDED BY THE PXTQ 23OCT06 WILLIAM COATINGS. GROUP AND 'IS TYPICALLY USED TO SEAL PXTO.23OCT06 CONCRETE TO EPOXy'JOINTS...

PXTO 23OCT06 PXTO 23OCT06

  • THE SEALANT SHALL BE APPLIED PER, THE MANUFACTURERS PXTO 23OCT06 INSTRUCTIONS.

ATTACHED IS THE TECHNICAL DATA -SHEET FOR PXTO 23OCT06 THE PRODUCT fSEE'EVAL ATTACHMENT 1).

TANG 23OCT06

- ALSO ATTACHMENT,2 PROVIDES THE MSDS-SHEET FOR THE P-XTO 23CT06 PWODUTTCT' PXTQ.23OCTQ6 TANO 23OCT06

!A-S.PER' ENGINEERING STANDARD.ES-027, THE ENVIRONMENTAL PXTQ 23OCT06 PARAMETERS OF THE DRYWELL (ZONE 1)

ARE AS FOLLOWS:

PXTQ 23OCT06 PXTO. 23OCT06

1)

NORMA-L PLANZ OPERATING; PXTO 23OCTO6.

AGING'TEMP=

Ia9-.,DEG F' PXTO 23OCTO6(

RA-DIATION 20 E06 RADS PXT0 230CT06 HUMIDITY t 50 %

PXTO'23OCT06 PRESSURE = 16! PSIA PXTO 23OCT06, PXTo 23OCT06

2) DESIGN BASIS ACCIDENT, PXTO.230CT06..

AGING TEMP 317 DEG F PXT0' 23OCT06 RADIATION 32 E06 RADS PXT0'230CT06 HUMIDITY'= SUBMERGENCE

,.7 XTO 23OCT06 PRESSURe.= 53,.1 PSIA

."PXTO 230CT06 PXTO '23OCT06' THE TECHNICAL-.DATA SHEET -QtTACHMENT 1), INDICATES THAT PXTO 23OCT06 SEALANT-IS ACCEPTABLE FOR A SERVICE RANGE Or -4OF.To...

9-PXTO 2SOCTO6 1-70V AND IS WHETHER RESISTANT.

'THEREFORE THE SEALANT PXTO 230CT06,-,

WILL NOT DEGRADE OVER TIME DUE TO TEMPERATURE AND, TANO 230CT06 HUMIDITY.

THE SEALANT IS NOT REQUIRED TO'PERFORM ITS' PXT0 23OCT06 FUNCTION DURING THE DESIGN BASIS ACCIDENT.

THEREFOR PXT0-230CT06 OCLROO01 4656

ACTION REQUEST ***

A/R TYPE CM ECR REQUEST ORG.: OED REQUEST DATE: 21OCT06 REQUESTED BY: TAMBURRO'

'PAGE:

.A/R NUMBER :'A2152754 A/R STATUS ; ASIGND STATUS DATE% 20CT06-LAST UPDATE 25OCT06 PRINT DATE : 25OCT06 06 S----

=

THE DESIGN BASIS ACC1DENT PARAMETERS IN ES-027 ARE 'NOT

.'PXT0 230CT06 APPLICABLE.

PXTO 230CTT6 PXTO 23OCT06 THE MATERIAL IS A POLYURETHANE BASED PRODUCT MATERIAL

,PXT0 230CT06 AND IS EXPECTED TO HOLD UP WELL UN'DER-ABOVE NORMAL PXTO 23OCT06 QPERATING'RADTATION EXPOSURE.

PXTM 23OCT06 TANO 23OCT06 1]

CONCLUSON I FINDINGS:

PXrO 23OCT06 PXTO.23OCT06

BASED ON THE.ABOVE.EVALUATION, SIKAFLEX - TEXTURED.

PXTQ '23OCT06 SEALANT IS AN ACCEPTABLE FILLER MATERIAL FOR THE PXTg 23OCT045 SEPARATIONS/VOIDS IN THE BAYS, PXTO 23OCT06 TANO 23OCT06,

- IT IS NOTED THAT THE SIKAFLEX TEXTURED SEALANT IS TAN,.230CT06 DESIGNED FOR ALL TYPES OF JOINTS, WHERE THE MMX AND*'MIN TANO 23OCT06 K

DEPTHS DO. NOT EXCEED 1/2" OR 1/4"'RESPECTIVELY.

ANYTHING TANO,23OCT06 BEYOND THESE VALUES HAS THE POTENTIAL OF DEGRADING.

TANO 230CT06 PXTO 230CT0-LIMITATIONS ARE AS. FOLLOWS:

PXTO 23OCT06 TAN0, 230CT06

1) AFFECTED AREAS ARE PROPERLY PREPPED AS STATED ABOVE-PXTO 230CT06
2) APPROPRIATE CURE TIMES ARE ADHERED TO PXTO "230CT06
3) THE SEALANT IS APPLIED PER THE: M-NUFACTURERS PXTO 23OCT06 INSTRUCTIONS.

TANO 23OCT06 PXTO 23OCT06, NOTE:

A REVIEW OF CC-AA-102 DETERMINED THAT THE PXTO 23OCT06 ACTIVITY DOES NOT IMPACT THE CONFIGURATION OF THE PXTO 23OCT06 SANDBED,. THE APPLICATION OF THE SEALANT IS A PREVENTIVE PXTO 23OCT06 MAINTENANCE MEASURE TO ENSURE THE EPOXY GROUT WILL NOT PXTO 23OCT06 DEGRADE-OVER TIME, PXTO 2 3OCT06 PXTO 23oCT06 D.

REFERENCES:

PXTO 230CT06 PXTO 230CT06

1).I/CR # 00546932
PXT, 23OCT06
2)

ENG STD ES-027 REV.4 PXTO 230CTO'6

3)

PCIFICATION #SP.-130,2-32-035 REV,. 0 PXTO 23OCTO6 PXTO.23OCT06..

.E.LIST OF ATTACHMENTS (TO BE CMT'D WITH EVAL TO RM):

TAND:23OCT06' PXTO 23OCT06,,

1) SIKAFLEX'PRODUCT DATA SHEET (2 PAGES)

PXTO 230CT06

  • 2)- -SIKAFLEX MSDS SHEET (5PAGES)

PX'O 230OCT06 PXTO 23OCT06 RESPONSE PREPARED BY: PETE TAMBURRO PXTO 230CT06*-

CO-PREPARED BY:-TEDD NICXERSON, 10/23/06 TANO 230CTO6 TANO 23OCT06

        • ~****** **~***k****~*TANO

.23OCTO06 INDEPENDENT REVIEWER BY : HOAT HO (TMI) 10/23/06-HDUHO 240CT06

  • "HDHD 240CTO'6 THE TECH.

EVAL WAS REVIEWED TO DETERMINE WAS HDHO 24OCTO6 CORRECT INPUT USED.

THE RESULTS ARE REASONABLEg -------

HOH 24OCTO6 ANY CONCERNS WERE DISCUSSED WITH CO-ORIGINATOR OF'THIS HDHO 240CT06

TECH, EVAL AND RESOLUTIONS HAVE BEE.EN INCORPORATED.

HUHO 240CT06 1

OCLR00014657

A/R TYPE

__C

_ _CR REQUEST. ORG ' OED RMQUEST DATE: 210CT06 REQUESTED BY.

TAMBQRRO ETION'REQUEST3 PAGEt A/R N14UBER r A2152754 A/R STATUS : ASIGND1 STATUS DATEi-23OCT06 LAST.UPDATBE 25OCT06 PRIInT DATE

.25QCT06 VERIFIER CO.NCURS WITH. ORIr6.NATOR,

  • HHO240C0zO6 BASED ON THIS EVALUATION, THE TECHE.)VAL, IS VERI-FIED TO HDHO 24OCT06 BE ACCEPTABLE.-

HD]I0 24OCT06 TvIS TECH EVAL WAS REVIEWED BY.JON CAVALLO (THIRD PXTO 24OCT06 PARTY REVWEW)

AND FOUND-,TO BE ACCEPTABLE.

ATTACHMENT PXT0 240CT06

,3 PROVIDE AN EMAIL DOCUMENTING HTS REVIEW.

PXT0 24OCT06 SPHI 25OCT06.

THIS TECHNCIAL EVALUATION HAS BEEN REVIEWED AND APPROVED.

SPHI 250.

BY, ENOINEERING MANAGEMENT.

IT MEETS THE REQUIREMENTS OF SPEI-25OCT06 CC-AA-309-101 AND HU.-AA-1212, S. HUTCHINS (10/2 5/06)

SPHI 25OCT06 i

I..

I OCLROO014658

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