IR 05000389/1979008

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Responds to NRC 790621 Ltr Re Violations Noted in Ie Insp Rept 50-389/79-08.Corrective Actions:Concrete Test Cylinders Being Molded to Comply W/Requirements & New Spray Heads Installed
ML17207A335
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 07/13/1979
From: UHRIG R E
FLORIDA POWER & LIGHT CO.
To: MURPHY C E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML17207A334 List:
References
L-79-191, NUDOCS 7909040052
Download: ML17207A335 (4)


Text

UNRcRFI-tI',lg$P,t~(g,"!~Is"84>~b~.t~r.>FLORIDAPOWERItLIGHTCOMPANYJuly13,1979L-79-191Mr.C.E.Murphy,ChiefReactorConstructionandEngineeringSupportBranchU.S.NuclearRegulatoryCommission101MariettaStreet,Suite3100Atlanta,Georgia30303

DearMr.Murphy:

Re:RII:JRH50-389/79-08FloridaPowerandLighthasreviewedthesubjectinspectionreportandourresponseisattached.Thereisnoproprietaryinformationcontainedinthereport.Verytrulyyours,RobertE.UhrigVicePresidentAdvancedSystems8TechnologyREU:MV:cfcc:R.W.WrightHaroldF.Reis,EsquireQP~jiff~~V9O9040OFFICE.LCOPYPEOPLE.~.SERVINGPEOPLE 4>,'

ATTACHMENTRII:JRH50-389/79-08INFRACTION:CuringofConcreteTestCylinders-FailuretoFollowProceduresProceduresgI10.71andSpecificationFLO-2998-473specifythatconcretetestcylinderswillbecuredinaccordancewithASTMC-31andASTMC-511.Theinspectorfoundthefollowingexampleswhichwerecontrarytotheserequire-ments:1)Contrarytotheallowable60to80degreeFahrenheitrangeinASTMC-31,onMay31,1979,temperaturesadjacenttofieldcuredtestcylindersetnumbers6147and6149were90degreesand86degreesFahrenheitrespectively.2)ContrarytoASTMC-511,inthelaboratorycuringroomfreewaterwasnotvisibleontestspecimensstoredalongtherightwall.3)Nodocumentationwasavailabletosupportthe95percentrelativehumidityrequirementofASTMC-511.RESPONSE:BasedontheinformationprovidedtoFPLbyNr.J.R.Harris'sexitinterview,ConstructionOCdeterminedthenecessarycorrectiveactionsandtookimmediatestepstoimplementtheseactions.FullcompliancewasconfirmedbyMr.R.W.WrightduringtheweekofJunell,1979.Correctiveactionstakentoresolvetheabovenoncomplianceareasfollows:1)ConcretetestcylindersarenowbeingmoldedtocomplywiththerequirementsofASTMC-31andC-172'nordertomaintaintheinitialcuringtemperatureof60-80Fduringhotweather,theconcretespecimensarebeingmoldedintheconcretelaboratory.2)Newsprayheadshavebeeninstalledinthelaboratorycuringroomspraysystemtoassureallcylindersstoredinthecuringroomarethoroughlywetted.3)Therecordingofhumidityinthemoistcuringroomisoptional,accordingtoASTMC-511,onlytemperaturerecordingismandatory.However,forourowninformation,humidityinthecuringroomisnowbeingrecorded.

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