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| {{Adams
| | #REDIRECT [[05000321/LER-1980-062-01, Investigation of Pavement Deflection Revealed Settling of Fill Matl Under Svc Water & RHR Svc Water Lines.Caused by Improper Compaction of Area in Front of Intake Structure.Backfill Replaced]] |
| | number = ML19326D776
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| | issue date = 06/25/1980
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| | title = /01T-0:on 800612,w/Unit 1 in Cold Shutdown, Investigation Was Begun to Determine Cause of Pavement Deflection Which Occurred Beneath Crane Outrigger Pad. Caused by Improper Compaction of Localized Area
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| | author name = Coggin C
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| | author affiliation = GEORGIA POWER CO.
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| | addressee name =
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| | addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
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| | docket = 05000321
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| | license number =
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| | contact person =
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| | document report number = LER-80-062-01T, LER-80-62-1T, NUDOCS 8007030286
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| | package number = ML19326D773
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
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| | page count = 2
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| }}
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| {{LER
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| | Title = /01T-0:on 800612,w/Unit 1 in Cold Shutdown, Investigation Was Begun to Determine Cause of Pavement Deflection Which Occurred Beneath Crane Outrigger Pad. Caused by Improper Compaction of Localized Area
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| | Plant =
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| | Reporting criterion =
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| | Power level =
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| | Mode =
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| | Docket = 05000321
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| | LER year = 1980
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| | LER number = 62
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| | LER revision = 1
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| | Event date =
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| | Report date =
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| | ENS =
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| | abstract =
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| }}
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| =text=
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| {{#Wiki_filter:I U.S. NUCLEAR REGULATflRY COMMISSION NRC FORM 366 l(7 77)
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| LICENSEE EVENT REPORT coainot block:
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| l l
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| l l
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| l (PLFASE PRINT OR TYPE ALL REQUIRED INFORMATION)
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| ~
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| l G l A l E l I l H l 1 l@l 010 l-1010 l0 l0 !0 l-10 l0 l@l4 l1 l1 l1 l1 j@l l
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| l@
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| o i 7
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| 8 9 LICENSEE CODE 14 15 LICENSE NUMULH 25 26 LICEN5E TYPE Ju bl CAT td con'T 3M l L ]@l 0 l 5 l 010 j 013 l 2 l1 l@l016 l1 12 l 810 l@l0161215l810.l@
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| o i 74 75 HEPOHT DATE 80 7
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| 8 t,0 61 DOCKET NUMBEH tal 69 LVENT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h lWith Unit 1 in cold shutdown, an investigation was begun to determine
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| [
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| o 2 QL3_l Ithe cause of pavement deflection which occurred beneath a crane outrig-1 Iger pad at the intake structure.
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| The investigation revealed a settling i o 4 tof fill material under the service water and RHR service water lines.
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| I O $
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| lo lc i lRemedial action will be required in order to comply with FSAR compactioni 1
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| 0l7ll requirements.
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| There were no effects upon public health and safety due i
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| i I
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| lto this event. This is not a repetitive occurrence.
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| o a DE COCE St BC E COMPONENT CODE SUBC D'E SU DE 12 l Z 1@ Lxj@ l x i@ I zi zl zl zl zl zlO Lx_J@ LXJ @
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| o 9 7
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| 8 9
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| 10 11 12 13 18 19 20 SEOUENTI AL OCCURRENCE REPORT REVISIUN EVE NT YE AR REPORT NO.
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| CODE TYPE N O.
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| O s=E R/RO l 81 ol 1-1 10 16 12 1 M
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| 10111 lT I L _]
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| W L
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| a
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| _ 21 22 23 24 26 27 28 29 30 31 32 KEN ACT ON ON PL NT MET HOURS 22 SB IT FO A B.
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| UPPLIE MAN FACTURER lXl@lXl@
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| lzl@
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| [_zj@
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| 10 l0 10 l0 l lYl@
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| lNlg lzj@
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| lz l9 l9 l9 lg 3J 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i O IThe cause has been determined as improper compaction of a localized area l li li l limmedi a tely in front of the intake structure.
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| A substantial depth of I
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| lbackfill was compacted in this area.
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| Difficulty in originally compact-I i 2 lTITl l i ng o f the b a ck fill appears.to have caused the problem.
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| Corrective I
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| laction will be determined after the problem's scope is determined.
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| l i 4 80 7
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| 8 9 Y
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| % POWE R OTHER STATUf is FY DISCOVE RY DESCRIPTION
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| (_Gj @ 10 l 0 1 Ol @ l NA l
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| lC l@l Geortechnical Investigation l
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| i 5 ACTIVITY CONTENT REL E ASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELE ASE L.zJ @ LZJ@l NA l
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| l NA l
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| i 6 7
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| 8 9 10 11 44 45 80 PERSONNEL E XPOSUHES NUMBER TYPE DE SCRIPTION l 0l 0l Ol@l zl@l NA l
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| i 7 PEHSONNEL INJU IES NUYDEH
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| ==DESCRIPTION==
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| l0l0l0l@l NA l
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| i a 80 7
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| 8 9 11 12 TOSS OF OH DAMAGE TO FACillTY TYPE DE SCHIPTION
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| [_ zj@l NA l
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| i 9 80 7
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| 8 t 10 E SCnsPTION CSSSUEL 81 NA l
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| 1IlllllIIIllli 2 o 8 0'0 7 6'n o J_dT
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| 'l r I rnnnin sont p1t Fno. Sory, 917-36W-7781 a
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| m m..e
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| i LER f:
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| 50-321/1980-062 i
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| Licensee:
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| Georgia Power Company Facility Name:
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| Edwin I.
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| Hatch Docket #:
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| 50-321 L
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| =Narrative=
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| Report for LER 50-321/1980-062 On 6-12-80, with Unit 1 in cold shutdown, an investigation was begun to determine the
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| ==cause==
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| of pavement deflection which occurred beneath a
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| crane outrigger pad at the intake structure.
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| ,The investigation involved excavation of the pavement and the ground beneath until reaching the service water lines below.
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| There was no damage done to the Unit 1 or 2 service water (PSW) or RHRSW piping in this area.
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| The investigation-was continued further and revealed two 1.
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| the separati.on of fill from underneath the problems: _
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| 2.
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| existence of a
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| temporary pipe support used
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| : piping, and during construction which.should have been removed then.
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| This temporary support has been removed.
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| Presently, a testing plan consisting of numerous soil samples from bowings at the intake structure is underway.
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| The A/E is assisting 'in the investigation and in determining a proposed correction to the problem.
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| 'An acceptable resolution will be initiated once the results of the investigation are in and the appropriate course of action has been determined.
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| An update to this report will be issued.
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| W
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| }}
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| {{LER-Nav}}
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